To find out what stairs you can currently challenge someone in, first go to the Main Stairs Page, then click on "Show your stairs only" link. The ones in BOLD are ones you can make a challenge in. .
Luke Skywalker: I was about to write almost the exact same thing on this discussion on Feature Request, but decided to read the other boards before replying - and you said almost exactly what I was thinking also.
For example - I like to use AutoPass, and Fencer does not - we have a game together - if Fencer makes a move, and goes to me - let the system autopass it (if it can) and give it back to Fencer to make a move. In this way, Fencer is happy that he does not have to use autopass, and I'm happy because I can use autopass.
Anyway, the exact 3 things you listed is exactly what I would love to see also. Even though I don't like the idea of an opponent being able to just write " . " as a message to mess me up since you know there will be a few users who just like to cause problems who would do that.... but that can be a suggestion later down the road - to autopass even if there is a new message (with the reply of "Opponenet autopassed without reading last message" sent back) - but again, that suggestion can wait for now.