Can LED be changed/turned off on Mn Cast?

Finally got my Mn Cast working. There’s a red LED that’s on, and which would keep me from using this unit in my bedroom at present. I think it only came on once I switched to SPDIF output, but not sure.

Can this LED be controlled/disabled in any way?

Thanks!

yes that led is from the optical data SPDIF, if you are using it it needs to be ON
Otherwise it could be tuned off.

What software are you using?