Thanks Myk
Yep, it is indeed a simple separator command, etchedIn, -af left and right (Forgot to come back here and say I found it

)
Learning scripting, particularly UI, has been a pain - but slowly getting there! If you are a MEL guy I hope you stick around here - I'm sure to have many more questions!
btw, are you working at Escape? I have a friend at work that has just returned from a 3 month training course at Escape in London.