Caution, that kills the ISO_Level3_Shift mapping on the regular 105 layout. Much less intrusive solution is to leave Super_L, Alt_L, ISO_Level3_Shift as well a

Caution, that kills the ISO_Level3_Shift mapping on the regular 105 layout. Much less intrusive solution is to leave Super_L, Alt_L, ISO_Level3_Shift as well as the control and shift keys unchanged and simply map Super_R to Meta_R and map Menu to Hyper_R.