Once you have applied plugins to a track it would be very usefull to be able to copy or duplicate the track - complete with its plugins settings and perhapsalso audiofiles.
For example if I edit version one then I want to continue with the short version or the alternative edit version two.
Thats when I miss the duplicate track utility.
That is a good idea. It would on the other hand create some problems when merging sessions.
Here is an alternative idea:
If you need to create an alternative version of a show, then make a "Save session".
This will not take up more space, since you will be using the same audio files - as long as you save the session the same place as the original.
You could give it the session name and add "1" ... or "cut" ...