Structures have many right-click options, but the property dialogs are currently very sparse (only label and subdiagram label). Let's compare the current right-click options of a FOR loop with the actual properties dialog, and we can see that many useful properties are missing (visibility of conditional terminal, autogrow setting, etc.). The parallelization has it's own standalone dialog, why not have all these settings on a new tab instead?
I propose that these scattered properties should all be integrated into the single properties dialog to keep things better organized. Here's how the properties dialog of a FOR loop could look like after implementation of this idea.
Similar changes could be made for all other structures.