How to sort and show "sent to:"? in another sent folder under individual subject folder

I want to create sent folder under an individual folder.  This folder will contain all the emails I have sent out based on the subject matter of the individual folder.  I can create the sent folder with out any problem.  What I can not figure how to do is change the content of this sent folder to show and sort by whom it was “sent to”. 

Hi KM,

First of all, remove your second post on this subject.
You don’t bump your thread by creating an a 2nd one under a different subject name.
It’s against the forum rules …

The procedure is like for any folder to show Columns

R-click an existing column header in this folder and select Column Configuration

Add or Remove items as required and move them in position as required.

Example below