I would like the user to be able to insert only one shape inside a cell. Therefore, I'd like to disable all other shapes and/or objects. Preference for enabled shape would be something simple, eg; rectangle.
I don't think you need to know what VBA code I already have but here is an example for the workbook just in case:
With Sheet1 'AO5 tech
.Protect Password:="password", UserInterfaceOnly:=True, AllowFormattingCells:=True, AllowFormattingRows:=True, AllowInsertingHyperlinks:=True, DrawingObjects:=False, Contents:=True, Scenarios:= _
.EnableOutlining = True
Hope this makes sense!