Hi Greg,
It's certainly a useful function to have. That would be something like "Render all Takes", but with the option to combine them as one clip for a single character.
I'm not aware of something like that as a function or as a plug-in.
I would drag the Animation menu out, place the Takes menu close by, and select the first take, then Animation> Create Animation Clip. So, it can be done as a click-and-go cycle.
Click on the next take rectangle and add another Animation clip.
When all are done, extend the time of the project and place all clips in a single Motion System Layer. Convert to Keyframes if the Motion System is not your target.
With that, my idea would be to have a Command in the Take system that allows for a single selected object to produce Animation clips like the Render all takes.
This would be my suggestion, if I needed that to the "Share Your idea" option,
https://www.maxon.net/en/support-center
Thanks for the input to the "Share your Idea".
All the best