I know how to us the random dung tool. As for the bosses I didn't mean PUG's w/ the tool, I meant if I am playing by myself, how would I go about those encounters?

You still cannot pick the dungeon you want more than once though even if you are grouped up, so I still wouldn't be able to enter a heroic more than once a day. I'm looking into farming reg PoS I guess.

The question about team comp. was more direction to people running that comp and giving help/walkthroughs