The Communication custom field categories created within the Control Panel settings will be available in the Add Communication window.
Communication custom fields will display below a Communication record in a separate row when the Communication is in a collapsed view.
When clicked on, the Communication record changes to an expanded view with the custom fields are available in a separate row at the bottom of the communication record.
Only fields with values will be displayed. Custom fields are laid out according to the order the categories are placed in Control panel > Communication custom fields.
The icon will show when the maximum number of custom fields which can fit the row has been exceeded. Click on the icon to view populated custom fields not shown within the row.
If a field value has surpassed the display limit, '...' will appear next to the cut off text. Hover over the custom field to view a pop-out information window displaying the full field value.