Using "Manage Hard Drive Space" for folders synced through Dropbox Backup

So there's a great feature in Dropbox desktop that allows you to see graphically what is taking up all of the space on your hard drive, and very quickly change certain/all dropbox content to online only to free up space.

However, it turns out that if you use Dropbox Backup, that manage feature is disabled.  I don't fully understand why, as using backup as I see it, makes my desktop and documents live in my Dropbox folder set, and can be used as such, with making my own files online to save space.

I appreciate that maybe the Manage Space function may not be able to work against my desktop/documents backup, but I would still expect to be able to manage my main Dropbox Team folder content to release any old offline files easily.

 

I did raise this previously on https://www.dropboxforum.com/t5/Dropbox-ideas/Missing-quot-Manage-Hard-Drive-Space-quot-option-when-using/idc-p/776330 but it was closed due to inactivity.  Figured I would raise it again to keep it live and hope that people upvote it, so that the dev guys take a look at it.