User Guide

ContaX is a desktop application for managing your Contacts and Schedule. It is a powerful tool optimized for use via a Command Line Interface (CLI), while incorporating Graphical User Interface (GUI) elements to make it user-friendly. If you are able to type fast, ContaX is capable of helping you manage your contacts and schedule more efficiently than traditional GUI applications, enabling you to shift your focus to other more important things.

Broadly speaking, ContaX consists of an Address Book for managing Contacts, and a Schedule for managing Appointments.

ContaX is designed with versatility in mind, so it does not place unnecessarily strict constraints on your inputs. It accepts all inputs, even those that remotely have a chance of being valid. For more details, see the Global Input Constraints section.

• Quick start
• Global Input Constraints
  • Displayed Indexes
  • Common Date and Time Syntax
• Features
  • Onboarding guide
  • Viewing help : help
  • Clearing all entries : clear
  • Adding a person: addperson
  • Listing all persons : listpersons
  • Editing a person : editperson
  • Locating persons by attribute: findperson
  • Deleting a person : deleteperson
  • Creating a Tag : addtag
  • Editing a Tag : edittag
  • Listing All Tags : listtags
  • Deleting a Tag : deletetag
  • Finding Contacts by Tag : findbytag
  • Creating an Appointment : addappt
  • Listing All Appointments : listappt
  • Deleting an Appointment : deleteappt
  • Editing an Appointment : editappt
  • Listing Appointments Within A Period : apptbetween
  • Listing Empty Slots in Schedule Within A Period : freebetween
  • Edit Priority Level of an Appointment : prioritizeappt
  • Finding Appointment by Name or Person Name : findappt
  • Saving the data
  • Exporting the data: exportcsv
  • Editing the data file
  • Importing data
  • Importing CSV Files: importcsv
  • Operate on Contacts by Conditional Clause : batch
  • Operate on Contacts within Range : range
  • Chaining Commands: chain
  • Exiting the program : exit
• FAQ
• Command summary

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Quick start

1. Ensure you have Java 11 or above installed in your Computer.

2. Download the latest ContaX.jar from here.

3. Copy the file to the folder you want to use as the home folder for ContaX.

4. Double-click the file to start the app.
   
   For Users on Mac OSX: The security policy of OSX might prevent the creation of data files in the same folder. For users on OSX, it is recommended that you
   - Navigate to your home folder on Terminal
   - Launch the application using the command java -jar ContaX.jar.
   

5. The GUI similar to the below should appear in a few seconds. Note how the app contains some sample data.
   

6. If this is your first time running ContaX, you will be prompted to go through an Interactive Onboarding Guide to learn the basics, or you can choose to explore the application by yourself.

7. Type the command in the command box and press Enter to execute it. e.g. typing help and pressing Enter will open the help window.
   Some example commands you can try:

   • listpersons : Lists all contacts.

   • addpersonn/John Doe p/98765432 e/johnd@example.com a/John street, block 123, #01-01 : Adds a contact named John Doe to the Address Book.

   • deleteperson3 : Deletes the 3rd contact shown in the current list.

   • clear : Deletes all contacts and appointments.

   • exit : Exits the app.

8. Refer to the Features below for details of each command.

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Global Input Constraints

ContaX is generally designed to impose as little constraints on inputs as possible. However, there still exists certain limitations that apply throughout all features.

Displayed Indexes

The displayed index of a Person, Appointment or Tag refers to the number displayed beside the record in the GUI. Only positive integers are recognised as a displayed index.

Common Date and Time Syntax

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Features

Onboarding guide

Prompt on first run

When you run the program for the first time, you will be prompted to take a quick tour of the ContaX’s basic functions guided through a series of step-by-step instructions. You will be taken to the onboarding guide window if you select yes. If you choose no, the prompt will just close.

When going through the onboarding guide, instructions such as the one shown below will be displayed, and important areas will be highlighted.

Basic features covered The onboarding guide will cover the following:

• Add person
• Find person
• Delete person
• List persons

Viewing help : help

Shows the commands available and the syntax for all of them. It also includes a link to this user guide for further reading.

Format: help

Clearing all entries : clear

Clears all contacts and tags from the address book and all appointments from the schedule.

Format: clear

Adding a person: addperson

Adds a person to the address book.

Format: addperson n/NAME p/PHONE_NUMBER e/EMAIL a/ADDRESS [t/TAG]…​

Parameter	Constraints
NAME	Must not be blank, and contain only alphanumeric characters and spaces
PHONE_NUMBER	Must be at least 3 digits long. May optionally start with a country code E.g. 1234 and +6512345678 are both valid
EMAIL	Must follow the format local-part@domain. local-part must only contain alphanumeric characters and the symbols +_.-. domain is made up of 1 or more parts separated by periods, and must end with a part that is at least 2 characters long. E.g. john@piserver and john2@email.com are valid.
ADDRESS	No constraints
TAG	Must contain only alphanumeric characters and spaces

Examples:

• addperson n/John Doe p/98765432 e/johnd@example.com a/John street, block 123, #01-01
• addperson n/Betsy Crowe t/friend e/betsycrowe@example.com a/Newgate Prison p/1234567 t/criminal

Listing all persons : listpersons

Shows a list of all persons in the address book.

Format: listpersons

Editing a person : editperson

Edits an existing person in the address book.

Format: editperson INDEX [n/NAME] [p/PHONE] [e/EMAIL] [a/ADDRESS] [t/TAG]…​

• Edits the person at the specified INDEX. The index refers to the index number shown in the displayed person list. The index must be a positive integer 1, 2, 3, …​
• At least one of the optional fields must be provided.
• Existing values will be updated to the input values.
• When editing tags, the existing tags of the person will be removed i.e adding of tags is not cumulative.
• You can remove all the person’s tags by typing t/ without specifying any tags after it.
• If the parameters are specified, they must conform to the following constraints:

Parameter	Constraints
NAME	Must not be blank, and contain only alphanumeric characters and spaces
PHONE_NUMBER	Must be at least 3 digits long. May optionally start with a country code E.g. 1234 and +6512345678 are both valid
EMAIL	Must follow the format local-part@domain. local-part must only contain alphanumeric characters and the symbols +_.-. domain is made up of 1 or more parts separated by periods, and must end with a part that is at least 2 characters long. E.g. john@piserver and john2@email.com are valid.
ADDRESS	No constraints
TAG	Must contain only alphanumeric characters and spaces

Examples:

• editperson 1 p/91234567 e/johndoe@example.com Edits the phone number and email address of the 1st person to be 91234567 and johndoe@example.com respectively.
• editperson 2 n/Betsy Crower t/ Edits the name of the 2nd person to be Betsy Crower and clears all existing tags.

Locating persons by attribute: findperson

Finds persons whose names contain any of the given keywords.

Format: findperson KEYWORD [MORE_KEYWORDS] [by/SEARCH_TYPE]

• The search is case-insensitive. e.g hans will match Hans
• The order of the keywords does not matter. e.g. Hans Bo will match Bo Hans
• Only full words will be matched e.g. Han will not match Hans
• Persons matching at least one keyword will be returned (i.e. OR search). e.g. Hans Bo will return Hans Gruber, Bo Yang
• The SEARCH_TYPE determines the attribute being searched, and must match one of the following:
  • Name
  • Address
  • Phone
  • Email
• If SEARCH_TYPE is not specified, default search type is by Name.

Examples:

• findperson John returns john and John Doe
• findperson Garden by/address lists all persons whose address contain the keyword “Garden”
• findperson 87438807 by/phone lists all persons whose phone number matches “87438807”
• findperson alex david returns Alex Yeoh, David Li
  

Deleting a person : deleteperson

Deletes the specified person from the address book.

Format: deleteperson INDEX

• Deletes the person at the specified INDEX.
• The index refers to the index number shown in the displayed person list.
• The index must be a positive integer 1, 2, 3, …​

Examples:

• listpersons followed by deleteperson 2 deletes the 2nd person in the address book.
• findperson Betsy followed by deleteperson 1 deletes the 1st person in the results of the findperson command.

Creating a Tag : addtag

Creates a new tag in ContaX.

Format: addtag n/TAGNAME

• The TAGNAME parameter must be specified, and can only contain alphanumeric characters and whitespaces.
• If the TAGNAME already exists (case-insensitive), the tag will not be created.
• All tag names will be converted to lowercase characters.

Examples:

• addtag n/Potential Clients Creates a tag named potential clients in the address book (if it does not exist).

Editing a Tag : edittag

Edits an existing tag in ContaX.

Format: edittag INDEX t/NEW_TAGNAME

• All parameters must be specified.
• The INDEX parameter must be a positive integer, and refers to the index number shown in the displayed tag list.
• Changes the name of a tag at INDEX to NEW_TAGNAME.
• An error will be thrown if either INDEX is invalid or NEW_TAGNAME already exists in ContaX.
• An error will be thrown if the tag at INDEX has the same name as NEW_TAGNAME

Examples:

• edittag 1 t/Prospective Clients Changes the name of first tag in the list to Prospective Clients.

Listing All Tags : listtags

Shows a list of all tags in ContaX.

Format: listtags

Example output

Deleting a Tag : deletetag

Deletes the specified tag in ContaX.

Format: deletetag INDEX

• The INDEX parameter must be a positive integer, and refers to the index number shown in the displayed tag list.
• When the tag is deleted, contacts that contain this tag will have the tag removed.

Examples:

• deletetag 1 Deletes the first tag in the tag list and disassociates any contacts that contain the specified tag.

Finding Contacts by Tag : findbytag

Finds persons whose tags match the given keyword.

Format: findbytag t/TAGNAME

• The TAGNAME parameter must be specified.
• Search is case-insensitive e.g. clients is the same as Clients.
• If there are no tags that contain that keyword, an empty list will be displayed.

Examples:

• findbytag t/friends Displays the contact information of contacts who have the friends tag.

Creating an Appointment : addappt

Creates an Appointment in the Schedule with the specified parameters.

Format: addappt n/NAME d/DATE t/TIME l/DURATION [p/PERSON]

• All parameters except PERSON must be specified.

Parameter	Description	Constraints
NAME	The appointment’s name	Must be non-empty, and can only contain alphanumeric characters, spaces and the symbols .,!@#$%&*()-_=+
DATE	The appointment’s starting date	Must conform to the Common Date Formats
TIME	The appointment’s starting time	Must conform to the Common Time Formats
DURATION	The appointment’s duration in minutes	Must be a positive integer
PERSON	A person associated with the appointment	If specified, must be a positive integer, and refers to the index number shown in the displayed person list

Examples:

• addappt n/Bi-Weekly Meeting d/14-02-2022 t/11:00 l/60 Creates a one-hour appointment named “Bi-Weekly Meeting” on 14th Feb 2022 at 11:00 AM, associated with nobody in the contact list.
• addappt n/Contract Signing With Charlie d/22-10-2022 t/16:30 p/1 l/300 Creates a 5-hour appointment named “Contract Signing With Charlie” on 22nd Oct 2022 at 4:30 PM, associated with the first person in the contact list.

Listing All Appointments : listappt

Shows a list of all Appointments in the Schedule.

Format: listappt

Example output

Deleting an Appointment : deleteappt

Deletes an Appointment previously created in the Schedule.

Format: deleteappt INDEX

• Deletes the appointment that is at INDEX in the displayed appointment list.
• INDEX must be a positive integer, and refers to the index number shown in the displayed appointment list.

Examples:

• deleteappt 2 Deletes the second appointment in the list of appointments.

Editing an Appointment : editappt

Edits an Appointment previously created in the Schedule.

Format: editappt INDEX [n/NAME] [d/DATE] [t/TIME] [l/DURATION] [p/PERSON]

• Edits the appointment that is at INDEX in the displayed appointment list, setting the supplied parameter(s) to the supplied value(s).
• The INDEX parameter must be a positive integer, and refers to the index number shown in the displayed appointment list.
• At least one of the optional parameters must be supplied, otherwise the command will be ignored.
• If supplied, the optional parameters must conform to the following rules:

Parameter	Description	Constraints
NAME	The appointment’s name	Must be non-empty, and can only contain alphanumeric characters, spaces and the symbols .,!@#$%&*()-_=+
DATE	The appointment’s starting date	Must conform to the Common Date Formats
TIME	The appointment’s starting time	Must conform to the Common Time Formats
DURATION	The appointment’s duration in minutes	Must be a positive integer
PERSON	A person associated with the appointment	Must be a positive integer or the String none. If a positive integer is provided, it refers to the index number shown in the displayed person list. The String none is used to dissociate the person associated to the appointment.

Examples:

• editappt 6 l/300 p/none Edits the 6th appointment in the list of appointments to have a duration of 5 hours, and removes the person associated with the appointment. No other properties are changed.
• editappt 2 n/Call Juliet t/13:45 p/1 Edits the second appointment in the list of appointments to have the name “Call Juliet”, changes the time to 1:45 PM and associates the appointment to the first person in the displayed persons list. No other properties are changed.

Listing Appointments Within A Period : apptbetween

Lists all appointments from a starting time to an ending time inclusive of both ends of the range. It will list all appointments that contain any sub-range of the provided period.

Format: apptbetween [sd/STARTDATE] [st/STARTTIME] [ed/ENDDATE [et/ENDTIME]]

Parameter	Description	Default Value
STARTDATE	The starting date of the period	Today
STARTTIME	The starting time on the starting date for the period	00:00
ENDDATE	The ending date of the period	No upper limit
ENDTIME	The ending time on the ending date for the period	23:59

• The start of the period must be before or equals to the end of the period.
• All specified parameters must conform to the Common Date and Time Formats.

Example:

• apptbetween sd/21-10-2022 st/12:00 ed/23-10-2022 et/17:00 Lists all appointments from 21 October 2022, 12 PM to 23 October 2022, 5PM.
• apptbetween st/08:00 Lists all appointments from 8AM Today.

Example Output:

Listing Empty Slots in Schedule Within A Period : freebetween

Lists all empty slots in the schedule of a certain minimum duration, within the specified starting time to ending time. An appointment of the specified minimum duration can be inserted into each of the listed slots without causing any overlapping appointments in the schedule.

Format: freebetween l/DURATION [sd/STARTDATE] [st/STARTTIME] [ed/ENDDATE [et/ENDTIME]]

Parameter	Description	Default Value
STARTDATE	The starting date of the period	Today
STARTTIME	The starting time on the starting date for the period	00:00
ENDDATE	The ending date of the period	No upper limit
ENDTIME	The ending time on the ending date for the period	23:59
DURATION	the minimum duration of the slots listed in minutes. It must be a positive integer	Required Field

• The start of the period must be before or equals to the end of the period.
• If any of STARTDATE, STARTTIME, ENDDATE or ENDTIME are specified, they must conform to the Common Date and Time Formats.

Example:

• freebetween sd/21-10-2022 st/12:00 ed/23-10-2022 et/17:00 l/60 Lists all empty slots in the schedule that are at least 60 minutes (1 hour) long between 21 October 2022, 12 PM and 23 October 2022, 5PM.
• freebetween st/09:30 l/20 Lists all empty slots in the schedule that are at least 20 minutes long from 9:30AM today.

Example Output:

Edit Priority Level of an Appointment : prioritizeappt

Edits priority level of an Appointment previously created in the Schedule.

Format: prioritizeappt INDEX pri/PRIORITY

• Edits the priority of appointment that is at INDEX in the displayed appointment list, setting the priority to the supplied value.
• The INDEX parameter must be a positive integer, and refers to the index number shown in the displayed appointment list.
• The PRIORITY parameter must not be same as existing priority level for appointment at INDEX in the displayed appointment list.
• The PRIORITY parameter must be non-empty, and can only contain below values (case-insensitive):
  • High
  • Medium
  • Low
  • None

Examples:

• prioritizeappt 6 pri/high Edits the 6th appointment priority level in the list of appointments to have a status of high.
• prioritizeappt 2 pri/none Removes the second appointment priority and set status to none.

Example Output:

Finding Appointment by Name or Person Name : findappt

Finds appointments with name or Person name that contains the given keyword.

Format: findappt KEYWORD [MORE_KEYWORDS] [by/(person OR name)]

• The search is case-insensitive. e.g Meeting will match meeting
• The order of the keywords does not matter. e.g. Meeting Here will match Here Meeting
• Only full words will be matched e.g. Meeting will not match Meetings
• Appointments matching at least one keyword will be returned (i.e. OR search). e.g. Meeting Here will return Meeting There, Meeting Now
• If by/person is included, the appointments will be matched based on the person name.
• If by/name is included, the appointments will be matched based on the appointment name.
• If neither by/name nor by/person are specified, the appointments will to default to match based on the appointment name.

Example:

• findappt Meeting Lists all appointments with name that contains Meeting.
• findappt Johnny by/person Lists all appointments with person name that contains Johnny.

Saving the data

ContaX contact data are saved in the hard disk automatically after any command that changes contact data in JSON format at [JAR file location]/data/addressbook.json. Appointment data are saved in the hard disk automatically after any command that changes appointment data in JSON format at [JAR file location]/data/schedule.json.

Exporting the data: exportcsv

Exports the current list of contacts as a CSV file that can be imported through ContaX or viewed separately via Microsoft Excel

ContaX formatted CSV files are as follows:

• First row contains headers delimited by commas. Headers used are Name, Phone, Email, Address, Tagged
• Second row onwards will contain contact information corresponding to the column headers.

An example exported CSV file is as follows. This can be opened by text editors or spreadsheet management applications like Microsoft Excel.

Format: exportcsv

• Exports CSV as per ContaX format. This file can be imported by other instances of ContaX.
• File will be saved on the directory [JAR file location]/data/addressbook.csv

Examples:

• exportcsv: Exports the current address book as a CSV file at [JAR file location]/data/addressbook.csv

Editing the data file

ContaX contacts and appointments data are saved in the hard disk automatically after any command that changes contact data in JSON format at [JAR file location]/data/addressbook.json and [JAR file location]/data/schedule.json. Advanced users are welcome to update data directly by editing that data file.

Importing data

In order to import data from external sources into ContaX, there are the following options:

• Replacing addressbook.json or schedule.json file with a valid ContaX formatted generated by another system with ContaX
• Importing CSV Files

Importing CSV Files: importcsv

Format: importcsv f/FILEPATH [n/COLUMN_NAME] [p/COLUMN_PHONE] [e/COLUMN_EMAIL] [a/COLUMN_ADDRESS] [t/COLUMN_TAGS]

• Imported contacts will be appended to the current address book.
• Each argument represents the corresponding attribute for a person.
  • COLUMN_NAME - specifies column number for Name
  • COLUMN_PHONE - specifies column number for Phone
  • COLUMN_EMAIL - specifies column number for Email
  • COLUMN_ADDRESS - specifies column number for Address
  • COLUMN_TAGS - specifies column number for Tags
• If any argument is omitted, it will follow the next available column based on the default sequence of Name - Phone - Email - Address - Tags
• Fields should comply with existing field restrictions, e.g. no alphabets in Phone.
• Tags should be in the delimited by ; e.g. tag1;tag2;tag3;, in the imported CSV file.
• If the specified rows clash, the command will fail.
• If there are lines with illegal characters or invalid formatting, ContaX will skip importing the affected line
• This is designed with flexibility in mind, such that users will be able to export CSV files from any other format and do minimal data organisation before importing into ContaX

Examples:

• importcsv f/file.csv n/2 p/3 e/5 a/6 t/4
  • Reads from a CSV file treating the 2nd column as names, 3rd column as phone numbers, 5th column as email addresses, 4th column as tags.
• importcsv f/file.csv n/2
  • Reads from CSV treating the 2nd column as names, 3rd column as phone numbers, 4th column as email addresses, 5th column as tags.
• importcsv f/file.csv
  • Reads from CSV with default ContaX format positions

Operate on Contacts by Conditional Clause : batch

Performs operations on contacts in the address book that match the given condition.

Format: batch COMMAND by/FIELD [=/EQUALS_VALUE] [start/START_WITH] [end/END_WITH]

• COMMAND must be a valid command without INDEX. The allowed operations in COMMAND are:
  • editperson
  • deleteperson
• The FIELD provided must be provided, and must match one of the following:
  • Name
  • Address
  • Phone
  • Email
• Exactly one parameter of EQUALS_VALUE, START_WITH, or END_WITH must be provided.
• A EQUALS_VALUE is value matching the exact value in the target field.
  • Only full words will be matched e.g. Han will not match Hans.
• A START_WITH is value matching the value in the target field with specific starting value.
• A END_WITH is value matching the value in the target field with specific ending value.

Examples:

• batch deleteperson by/name start/A
  • Deletes all persons whose name start with A (case-sensitive)
• batch editperson p/87438806 by/phone =/87438807
  • Edit contact with phone number matching keyword 87438807 and changes them to 87438806

Operate on Contacts within Range : range

Perform actions on a group of contacts.

Format: range COMMAND from/INDEX_FROM to/INDEX_TO

• Performs the specified COMMAND on all contacts between the specified range of INDEX_FROM to INDEX_TO inclusive.
• COMMAND must be a valid command without INDEX. The allowed operations in COMMAND are:
  • editperson
  • deleteperson
• The INDEX_FROM and INDEX_TO parameters must be positive integers, and refer to the index number shown in the displayed person list.
• INDEX_FROM must be less than INDEX_TO supplied, otherwise the command will fail.
• The resultant effect of the command is dependent on the performed action.

Examples:

• range editperson e/johndoe@example.com from/6 to/10
  • Sets the email address of the 6th to 10th contacts in the address book to johndoe@example.com.
• range deleteperson from/2 to/3
  • Deletes the 2nd and 3rd contacts in the address book.

Chaining Commands: chain

Perform multiple actions in a single command.

Format: chain COMMAND_A && COMMAND_B [&& COMMAND_C ...]

• Calls multiple specified commands.
• A valid command (i.e. The syntax of COMMAND must be correct) must be supplied before and after the && operator, otherwise the command will fail

Examples:

• chain editappt 6 l/360 && listappt
  • Edits the 6th appointment in the list of appointments to have a duration of 6 hours. Then list all appointments in the Schedule
• chain deleteappt 2 && addappt n/Contract Signing With Charlie d/22-10-2022 t/16:30 p/1 l/300
  • Deletes the 2nd appointment in the list of appointments.
  • Then, create a 5-hour appointment named “Contract Signing With Charlie” on 22nd Oct 2022 at 4:30 PM, associated with the first person in the contact list

Exiting the program : exit

Exits the program.

Format: exit

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FAQ

Q: How do I transfer my data to another Computer?
A: Install the app in the other computer and overwrite the empty data file it creates with the file that contains the data of your previous AddressBook home folder.

Q: Can I edit the data manually?
A: Yes, simply open addressbook.json to edit Contacts and schedule.json to edit Appointments. Note that if you change a Contact’s name in addressbook.json, you will also need to change it in schedule.json.

Q: Why is ALL my data missing?
A: Your data file is probably corrupted (likely in the JSON structure). Do not enter any command, close the application, and fix your data file!

Q: Why is some of my data missing?
A: There is probably some invalid information in your data file. Invalid records are discarded during loading, and those records you do not see might be invalid. Do not enter any command, close the application, and fix your data file!

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Command summary

Action	Format, Examples
Add Person	addperson n/NAME p/PHONE_NUMBER e/EMAIL a/ADDRESS [t/TAG]…​ e.g., addperson n/James Ho p/22224444 e/jamesho@example.com a/123, Clementi Rd, 1234665 t/friend t/colleague
Clear	clear
Delete Person	deleteperson INDEX e.g., deleteperson 3
Edit Person	editperson INDEX [n/NAME] [p/PHONE_NUMBER] [e/EMAIL] [a/ADDRESS] [t/TAG]…​ e.g.,editperson 2 n/James Lee e/jameslee@example.com
Find Person	findperson KEYWORD [MORE_KEYWORDS] [by/SEARCH_TYPE] e.g., findperson James Jake by/name
List Persons	listpersons
Add Tag	addtag n/TAGNAME e.g., addtag n/Potential Clients
Edit Tag	edittag INDEX t/NEW_TAGNAME e.g., edittag 1 t/Prospective Clients
List Tags	listtags
Delete Tag	deletetag INDEX e.g., deletetag 1
Find Contacts By Tag	findbytag t/TAGNAME e.g., findbytag t/friends
Add Appointment	addappt n/NAME d/DATE t/TIME l/DURATION p/PERSON e.g., addappt n/Call Bob d/14-02-2022 t/11:00 p/2 l/60
List Appointments	listappt
Delete Appointment	deleteappt INDEX e.g., deleteappt 2
Edit Appointment	editappt INDEX [n/NAME] [d/DATE] [t/TIME] [p/PERSON] [l/DURATION] e.g., editappt 2 n/Call Juliet t/13:45
List Appointments Within Period	apptbetween [sd/STARTDATE] [st/STARTTIME] [ed/ENDDATE [et/ENDTIME]] e.g. apptbetween sd/21-10-2022 st/12:00 ed/23-10-2022 et/17:00
List Available Slots Within Period	freebetween l/DURATION [sd/STARTDATE] [st/STARTTIME] [ed/ENDDATE [et/ENDTIME]] e.g. freebetween sd/21-10-2022 st/12:00 ed/23-10-2022 et/17:00 l/60
Find Appointment	findappt KEYWORD [MORE_KEYWORDS] [by/(person OR name)] e.g findappt Meeting
Help	help
Export CSV	exportcsv
Import CSV	importcsv f/FILEPATH [n/COLUMNNUM] [p/COLUMN_PERSON] [e/COLUMN_EMAIL] [a/COLUMN_ADDRESS] [t/COLUMN_TAGS] e.g., importcsv f/input.csv n/2 p/3 e/5 a/6 t/4
Operate on Contacts by Conditional Clause	batch COMMAND where/CONDITION e.g., batch editperson p/87438806 by/phone =/87438807
Operate on Contacts within Range	range COMMAND from/INDEX to/INDEX e.g., range editperson e/johndoe@example.com from/6 to/10
Chaining Commands	chain COMMAND_A && COMMAND_B e.g., chain editappt 6 l/360 && listappt