HELP!!! Custom MIDI Script MPD24 (RED BOX) for Ableton 9

HELP!!! Custom MIDI Script MPD24 (RED BOX) for Ableton 9

Hey DJTT! My programming skills is very bad , but I have managed to turn on the “red box” feature in session view, to controll the grid like apc/launchpad. All works fine, pads (from 1 to 15) launching clips, but I can not figure out, how to make “Scene Launch” on pads (16, 12, 8, 4) in Red Box range. My script is here Dropbox - Error - Simplify your life
Help edit or tell me how to do it. Thank you!