In the documentation, regarding the subject of 'Removing all unused takes and empty Take lanes', it says the following...........
 
To delete all muted takes in a track
1. Click the track’s Expand/collapse Take Lanes button to show Take lanes.
2. Right-click the Comp clip and select Delete Muted Takes on the pop-up menu.
 
When I right click a clip, i get no such menu, has the process changed or am I doing something wrong?
Regards
Lee

Me too, need to know

was just wondering about this

Make sure you right click on the top (parent) clip. The menu won't show up if you right click on a Take Lane or a Take Clip.
 

Not in front of my DAW at the moment, but I think you have to right click on the top of the comp clip (blue stripe) to get these menu options. 

You beat me to it, Craig...! 

Aha! Thank you for the answer Craig.

I thought Flattening the comp did the same thing, no ?
Ahh, never mind.
 
"The Flatten comp command mixes down all isolated takes to a new Take lane named Comp. The new Take lane is soloed and the clip is locked to prevent further editing."

slyman
Not in front of my DAW at the moment, but I think you have to right click on the top of the comp clip (blue stripe) to get these menu options. 

Clicking there works, but so does clicking anywhere on the comp clip.