Backup To Location List improvement

The wish is to:

Add more than 1 user defined Location to the Location list of the File/Backup/Back Up To dialog.

The dialog activated by menu File/Backup/Back Up To has a list of locations.
Three are “canned” and undocumented locations: Documents, Desktop, Home.
One and only one Location is user defined and it is only definable by using the Browse button.
Once a user defines a Location it appears in the list but replaces the previous user defined Location.