MIDI events triggering hotkey toggles LE5


I’ve had my LE5 for awhile but haven’t had the chance to explore it much. I’m trying to trigger Halion One sounds from a classic D-50 and some of the notes I hit seem to trigger window events in Cubase. Sometimes they even delete the selected tracks! There must be some setting where we can set key events to trigger what would normally be hotkeys, to do quick edits and such, but I would REALLY like to know how to turn that off.

Anyone know what I should do?