Many thanks to the Plexamp team for adding the new “Album Mix Builder” function! I was one of the users requesting the function via this forum.
For others reading this thread, this function allows you to add albums from your collection to the play queue and request to play those albums in a mix (shuffle). Identical in concept to the existing “Artist Mix Builder” function, but at the album level instead of the artist level.
It works as expected… and as always… Plexamp is awesome!
In addition to the Home screen Stations area, there is a “Build Custom Mix…” menu item in the popup menu (i.e. selecting three vertical dots icon) when viewing an Artist or an Album.