C6 and SOLO automation using a controller

Simple question. When I hit the SOLO switch on my MixedLogic M24 for a channel, I see the solo button go on in Cubase. Is the solo button in Cubase non-automatable? Cubase does not record the SOLO button press even though its turning the solo on in Cubase. Yeas I have automation enabled in C6. All other things, volume, pan, EQ, Aux sends all get recorded.

I cant find it in the automation window as a parameter to add to automation as well.

Thanks