AT said:

"The Download Manager keeps a record of what's downloaded and what's installed, and also checks the PGM server to determine if a later download (update patch) is available. If so it gives you a message to that effect."

So back to my original Wish, if the DM can do all that, why can't it simply read down the list of my previous purchases, and download everything to which I'm entitled?

Dunno.
All this electronic wizardry is a mystery unto itself! lol
LLOYD S