A help frame is editable under one of the following three conditions:
If a user has edit privileges for a frame, then she/he can enter
'^E' at the 'Select action' prompt to edit a frame. '^EN', '^EH',
'^ER', 'ET', are also valid responses to edit individual fields in
a frame. These will cause a switch to [EDIT MODE].
- The user holds the XUAUTHOR key, enabling edit of all frames.
- The user is the author of the frame being displayed.
- The user is one of the editors of the frame being displayed.
Editors can be assigned by the author with the option