Add / edit ctfp

The add /edit contenttype field property action lets you add or edit a ctfp.

When adding a ctfp, select the name of the property from the dropdown list. (Within edit mode, the property field is read-only.)
The Type input box is always read-only and is just there to provide information about the type of the selected property.

Dependant on the selected property, a textbox or a textarea is displayed.

For some properties, a Select button is availabe.
Clicking the select button will bring up a dropdown list from which you can choose an appropriate / supported value for the contenttype field property.
When you select a value from this dropdown, it will be copied to the textbox or textarea.

Most ctfp's should be set for All Roles. But for some ctfp's, it makes sense to set a role-specific value.
Before you do that, make sure there's a corresponding ctfp set for All Roles.
Then, add another ctfp with the same name/property, specify the role-specific value , uncheck the All Roles setting and select for which role(s) the ctfp should be set.