I can't work out why, or where to set it back to tabs.. Help please
Not sure I understand what you are describing.
Are you saying the Script Workspace does not open at all or are you saying that when you open multiple scripts they are not opening up in tabs? If they are not opening up in tabs, are they opening up in separate windows instead? Some additional details would be helpful to pinpoint what is going on.
I think that each script used to auto open in tabs if I had more than 1 open. Yesterday it stopped doing that, not even opening in another window, just replacing the one that was previously opened in the centre of the script workspace. Anyway, then I figured out right clicking on a script and saying open in a new tab seemed to set it back to how it used to be. I think it was ok after that.. I'll see how it behaves today. I still don't know why it suddenly stopped showing scripts in separate tabs yesterday.