Forms editor needs a structure view or control, as common in graphics programs
In graphics programs like Photoshop, Serif Drawplus, Xara etc. it is common to have the option of a "structure" or "layer" control.
This control shows all the items in a drawing (form), and can present (for example):
1) The Z-order layering of items. Incredibly useful to find items hidden behind other controls in a big form. Also you can control the Z order of items by drag+drop rather than grinding through endless sequences of "bring to front" or "send to back" that are so eay to get wrong.
2) The nesting of items (e.g. controls in panels). Easily move controls between panels with drag+drop.
More advanced options would include being able to set control properties like name etc. directly from this view.
Thanks for your suggestion.
I will update this idea if there are any updates to share.