Feature Request: Sub-controls

[noque-lind]

I love this project, and think it has really great potential. One thing I'm missing is sub-controls. So that each control can have additional sub-controls.

I'll be happy to contribute on this whenever I have the time during summer.

[LeeMangold]

Yeah, this is something I just started thinking about! I need to put some thought into how we would address that from the UI.

• The quick answer is just to make every sub-control its own control. That works, but will result in a LOT of controls, but also a lot of duplicate info (or missing info on a sub control).
• Along with the above, it would be trivial to add a "parent_id", but that wouldn't really help a lot with the UI

My initial UI thought is to create a simple "repeater" on a control to allow you to add a sub-control in-line with the control creation/editing. I'd probably just reuse the control object and add "type" field to indicate that it's a sub-control.

I'm going to leave this open for now and add it to the short-term roadmap!