Custom fields repository

Building custom forms in Air Maestro can be very laborious, especially when it is necessary to re-create controls (e.g. a nested drop down) that exist in the same form, or in other forms.

Would it be possible to create a "repository" to which custom controls could be added, and subsequently selected for use in multiple custom forms across different modules of Air Maestro (e.g. Flight Records, Safety Reports, etc.)?