Updated device file for CDP-CX200/220

Is there an Slink command for "goto_disc[dd]"? I'd like to have the player automatically position to a particular slot when the door has been opened. I can do it with the "pause-dt" command on the 200, but the 220 automatically closes the door when I issue a "pause-dt". I'd really like to repeatedly change the position of the carosel and update the display accordingly while keeping the door open.

Are the cdsls and cdslr device files updated with each CDJ release? It seems like the "unknown" commands would have been discovered by now.