Comments are a useful way to document your scripts
For ‘classic’ Helm scripts, put a semicolon as the first character. Blank lines are also ignored
; Route Channel 5 video to the monitor wall ROUTER1:TakeRoute(5,15)
For Lua scripts, two dashes at the start of a line indicate a comment. The ‘–lua’ comment is a special one that Helm uses to recognise Lua scripts.
--lua -- Route Channel 5 video to the monitor wall helm.exec("ROUTER1", "TakeRoute", 5,15)