1st -----You can clear manually.
2nd -----You can use a button. Add the action Maximize the object and the action Clear All to the button.
“Document Properties” contains triggers about sheets, general, etc.
“Sheet Properties” contains triggers about objects. Properties about objects are when activating, and deactivating the object.
I didn´t see any trigger when maximizing or restoring.
3rd ------But, you may want to use a macro. I´m sure is possible.
if c.IsMaximized then
3 solutions in one
Have a nice weekend.