Export the script and add your code in between the parts where you can, no I won't tell you how fully. If you really want to do this then google it otherwise try remaking your own version, I would of suggested contacting the maker of that however it doesn't look like he knows English.
Here's a tip, if it can be read then it can be always opened. Fun logic =)
Edit: Hive doesn't support this by the way so I wouldn't keep asking around about de-protection and other fun stuff.
This is important =
https://www.hiveworkshop.com/threads/start-here.245481/post-2457133
You should also introduce yourself here
https://www.hiveworkshop.com/forums/introductions-360/