So far as I can tell MuseLab will accept pretty much any valid OSC message.
There are a few, such as
/muse/elements/horseshoe which will get special treatment and displayed as the horseshoe indicator; as well as
/muse/batt which will show as a battery icon; but even with these, you can choose to display them with the regular visualizer if you wish.
The default ones for MuseLab are listed on the developer.choosemuse.com site. Just go through the list of available data and you will see the OSC paths.