Thank you so much for you help, I have now set a generic input called it volume, changed the name of the tween value from 'TweenValue' to volume and the input is controlling the volume if i scroll the value bar with my mouse, that's fine, however my UDP command doesn't seem to work, I tried:
setInput Volume*100
but instead of taking the volume to 100 it just comes up with an error saying 'parsing error:3; Unexpected end of file/line/communication.
I'm trying different varients now but it looks like it needs something to end the command line?
EDIT ignore that, me being silly, just removed the star and replaced with a space, all working perfectly. Thank you again for all your help