Without using it myself, I would guess it to be tooltypes you need to set (or arguments you need to give if starting it from a shell).
mark the playcd icon and find the show info in the icon menu (I think. At a pc (buuuh) and using help as a shortcut for it here, so have not really used it in a while). Then the arguments/tooltypes should appear and you just need to change the values.
That is, if I understood you correctly (and you understood me correctly.
Sincerely,
-Kenneth Straarup.