I thought about this for some time. This is what I came up with.

It would be helpful to...
Select bars (anywhere in the composition)->right click-> (and have the option) "export selected"
So it would export only the content of these bars in separate or mixed wav(s) with silence before and after:

########----------------------
--------##########------------
--------------------------####
------------------########----

*optional feature is to automate naming of exported bars (numbers of exported bars added to the file name).

I am aware of at least 3 "workarounds", it is not a request for one, rather it is a request for automating monkey process.

P.S. Essentially it is extension of bar-to-bar regen/freeze wish item.

Thank you.