Just a small feature request to make administration/editing/maintenance of forms a touch easier for designers..
A suggestion for improvement is illustrated in the mock up above. You'll see that while the field variable is [Read Only], there is now an "Edit Cog" that traditionally was found by hunting in the Field Variables tab.
This suggested improvement brings the ability edit/update a specific variable directly to the designer's finger tips.
Personally I would certainly appreciate this improvement if it were possible. Some of the processes and forms we're working on have over 100+ variables and thus finding, managing and editing variables can be a very tedious and scrolly task.