- Record a script of you clicking the check-box in Properties
- Find the resulting file and rename it from “usermacro.lua” to “Flared End.lua” or whatever. It shows up in the Script menu immediately.
- To give it a shortcut is harder. You’ll have to edit your keycommands json file. See this thread for more info on that. I haven’t done this myself; I just pick my little scripts from the menu and I use the shortcut for Run Last Script fairly often.