I'm not sure whether this is actually a Bug or a Feature that is "Working As Intended" or maybe "That's Life Buddy, Deal with it."

I really like that I can keep the Field Properties Editor open while still interacting with my standard Data Grids. This feature is extremely useful when creating and organizing multiple new fields and when fine-tuning SQL queries and Auto-assignment Rules. Unfortunately, the Editor window frequently hijacks FOCUS away from the main IQ window. The result is that you can no longer move Grid Columns around or use cursor keys or F2 while editing grid data, etc.

I understand that the interactions between the Field Properties Editor and the main IQ window must be pretty complicated and that tinkering with would be time-consuming and that the immediate solution is to just close and re-open the Editor. An acceptable compromise would be a shortcut key to close & re-open the Field Properties Editor and for the Editor to remember its last position and state (i.e. HIDE the Editor window instead of Closing it).