Even if you could Include the same file several times the original question is misguided.
Include essentially 'pastes' some code into the source prior to compiling. This happens before the exe is created. You can't decide whether or not to Include code based on user actions.
Include essentially 'pastes' some code into the source prior to compiling. This happens before the exe is created. You can't decide whether or not to Include code based on user actions.