Click status pane five times, then click mode

This will allow users to override operation modes in an easier way.

Thanks to @KOWX712 for initial implementation. (backslashxx@05c2f95)
Thanks to @rifsxd for enhancements. (backslashxx@93cede2)

--
alternatively you can

su -c echo "mode=8" > /data/adb/bindhosts/mode_override.sh

to enable the mode that you want to force