It would be nice if custom fields had a better decision based integration for allowing users to edit them.
Now the only option you have is to show the custom fields in the my account page or not.
The my account page can be tweaked with the smart tags, for display purposes.
Meaning you can display the fields or not with a memberdecsion, or you can leave them out
You can also change the order to your likings (as opposed to the standard order based upon the physical order of creation - physical order can be hacked in the db, but that is something else).
But this is only the display part.
If I click on the EDIT button, it is only the display in my-account page or not option from the checkout custom fields settings that is respected.
There is apparently no way to modify the edit screen.
Would be nice if this could be easily accomplished.
Thank you for this suggestion! This feature request or some aspect of the functionality suggested is currently being reviewed for possible inclusion in a future update. If there is additional information, this post will be updated to reflect it.