+1 for this.
But as a workaround with “original jackets” box sets you should be able to do this manually. It is obviously a lot of work.
Periodically I do a search on the forum for box set handling. Not a high priority it would seem. There are many posts from 2015 mostly repeating similar requests. There is even a 2014 reference in this one but I couldn’t open it as I think it was to an alpha testing forum.