Max,
I have recently purchased the same transceiver. If you plan on operating half duplex on linear sats, check out W5PFG's video here:
Not the same transceiver, but what Clayton shows is how to operate using a split frequency with the A and B VFO's, which the 706 also can do. If you have a second transceiver, or a receiver (such as a decent SDR), then you can operate full duplex. I have not attempted either, yet (as weather has not be cooperating here in the Northeast USA).
FM is basically the same (half duplex with split frequency), but you need to enable tone on uplink vfo for full functionality (and much less tuning, especially on 2m).
--Roy K3RLD
Good afternoon, Tell me, please, what I need to start working through satellites using this transceiver. Thank you.