So far the fastest way I know of discarding my hand is to scroll over to my private zone, drag-select all cards, hit G to group them, scroll over to the discard pile, drop them on top. Sometimes there are no cards in the discard pile yet so you have to be precise. At other times the cards refuse to combine with the existing pile.

This is a bit annoying for such a frequent action, and could presumably be scripted to work with a single key.

Putting cards at the bottom of a deck - such as rewards and rare cards is similarly annoying. AFAIK you have to put the card down, flip it face down, drag the deck on top of it, and drag the deck back. Some kind of shortcut to put selected cards face-down below the deck I'm hovering my cursor over would be welcome.

Otherwise the game is a surprisingly good adaptation of the video game and coop is fun, kudos. Also nice (and smart) of you to provide a TTS mod yourself instead of hunting down the players who want to play with TTS.