12.8.12 I edited an Item window in Form Designer, but why is its OK button disabled, preventing me from registering it?
You may have edited an exhibit Item. You cannot edit an Item in Exhibit status. The same applies when email cannot be edited or an expiration date cannot be set or added.
If an Item has already been registered, its definitions can be edited only if its status is Creating. To change the definitions of an Item whose status is Exhibit or Not exhibit, make a copy, and then edit its definitions.
For details about how to create a copy of an Item, see 12.7.3 Changing Item definitions.