Read-only if
This property controls whether form fields are read-only and cannot be edited in any way. You can choose which user groups are allowed to edit a certain form field. Furthermore, form fields can also be set to read-only only when the form is currently in a certain state.
The property read-only if determines whether an element is read-only or not.
If only one state or one user group has been selected, the form field can only be filled out, clicked at, or selected when the form is not in the selected state, or the user currently signed in is not a member of this group. For each state and user group there is also the opposite option to make a form element read-only when it is not in the selected state or not viewed by the selected user group.
When both a state and a user group are selected, the form field item can only be filled out, clicked at, or selected when the form is both not in the selected state and the user currently signed in does not belong to the selected user group as well.