Bought a Hogwart's express from a forumite who'd done a TMCC upgrade on it but it'd been so long since he did that installation he couldn't recall whether he'd installed just ERR's TMCC or rather both TMCC and cruise control. So, without removing loco and tender shells to visually check, without a layout to run it on, is there anyway of telling whether or not cruise commander was installed? (I do have a cab 1 and base but as said, no track laid yet to connect ther base and cab 1 to).