Multichoice fields provide the functionality of choice fields with an additional feature of being able to select more than one choice from the list. While choice fields have dropdown menu and radio button UI styles, multichoice fields are only displayed as dropdown menu.
Create field screen for MultiChoice field typeFor MultiChoice fields, the Field Type should be selected as 'MultiChoice'. The parameters required for creating a multichoice field are same as those for the choice fields. Please refer Choice fields to learn more about these specific parameters.
The image below shows how multichoice fields are displayed for the user.
Agent Portal: Multichoice field in an edit view