...
By setting this value, the field will be pre-populated with the text you enter. For field types with specific formatting requirements (e.g. Phone and Email), the default value should be formatted to be valid for that field type.
Enable Action ITAM
Enables the Action ITAM feature to be associated with this field, allowing for Examiners and Users to communicate back and forth about this field.
Enable Field Notes
This option enables field notes which is a great collaboration tool enabling team messages with an active visual indication for all users to utilize.
...
US (###-###-####)
International
Record Prefix
This property is specific to the Record ID field type. Use it to set a prefix to be displayed in front of the auto-generated number created by the Record ID field to identify the unique record (entry) with which it is associated.
Rich Text Fields
Many of the larger text field properties allow for rich text. Rich text fields allow for greater formatting options than simple text fields and provide buttons to simplify common formatting needs.
...
Checking this option will allow your client to select multiple answers for each row. This option can only be set once, when you initially added the matrix field. Once you have saved the form, this option can't be changed.
...