First you need to get latest beta version, it's pretty stable now (for listen servers for sure). There also fix so you can access menu correctly.
in yapb.cfg
yb_passwordkey "_ybpw"
yb_password "1234"
then:
setinfo _ybpw 1234 (in client console)
Now you can access the menu by: yapb menu or yb menu.
Again you need the latest beta located
here