"Lock Design" per form
I see this as a right click on form, toggle Lock Design, and the form (just that one) could or could not be edited (GUI elements can not be moved, components can not be added, etc...)
Fronzel Neekburm commented
Why just per form? I really hate how FRAMES tend to fall apart if you get anywhere near them. I'd like to at least be able to lock components (which also includes forms, frames, panels, ...).
Gad D Lord commented
It think this can be highly valuable for long-running complex projects with lots of UI controls. I have an 9 year active project and and I barely put a new form or control but yet add functionality behind it.