It's been a few years but....
the big one in the top pic is the pitch & roll trim, the big one in the bottom pic is the ICO (Instinctive Cut-Out) which disconnects all Autopilot functions.
The rest are confusing me a little as I'm sure there was a Press-to-Transmit toggle switch on the control column which allowed transmission on either Box 1, Box 2 or both radios but I can't see it. I think the other buttons were part of the HOTAS for the Autopilot & TFR system, which could be complicated to remember until someone came up with the easier TBM (Top Bottom Middle = Take Back Manual (flying control)) or MBT (Middle Bottom Top = More Bloody TFR).
HTH.