def clear_objects(self):
        # remove event watchers
        self.vismonwatcher.destroy()
        self.audmonwatcher.destroy()
        # remove buttons
        self.icon_sysmona.destroy()
        self.icon_comma.destroy()
        self.button_comma.destroy()
        self.button_commv.destroy()
        self.button_sysmona.destroy()
        self.button_sysmonv.destroy()
        self.button_satmap2.destroy()
        self.button_drive.destroy()
        # remove presenters
        self.mathdisplay.destroy()
        self.commbox.destroy()
        self.commsnd.destroy()
        self.csign.destroy()