Font environment variable is used now.

I recommend (for those non-plan9ers) symbolic linking $PLAN9/font to /lib/font. In Plan 9 font paths look something like this: /lib/font/font/subfont.
Enable scroll wheel in sam.

Behavior: works exactly has hitting button 1 or 3 on the scroll bar. If you are on line 2 of the window, it will scroll up/down 1 line; if you are on line 3, 2 lines up/down, and so on.
Switch between working window and command window with ctrl-t.