Thanks Dazman. I just got my DX6i yesterday and have been struggling with the setup. The user guides on the DAK site were only marginally helpful as the DX6 seems to have a totally different menu system to the DX6i.

With Dazman lighting the way, here's my setup for my Tamiya Panther (bearing in mind that I have Throttle/Steering on the left stick and Turret/Main Gun on the right):-

I needed to reverse channels 1-4 as everything moved the opposite way to my old Futaba.

DMD 1 (RUDD) to Rx RUDD
DMD 2 (THROT to Rx THROT
DMD 3 (M GUN) to Rx ELEV
DMD 4 (TURR) to Rx AILERON

MIX 1 (FIRES MAIN GUN)
GEAR > ELEV ACT
RATE D-125% U-0%
SW AIL D/R
TRIM INH

MIX 2 (FIRES HULL MG)
GEAR > ELEV ACT
RATE D+125% U-0%
SW MIX
TRIM INH

I also plugged in an MCD 'ADD-A-SWITCH' circuit board to RX channel 5 (GEAR) and set up the TRAVEL ADJUST of Channel 5 (GEAR) to 125%. I can now turn on the front headlight by flipping the GEAR switch on then off. This doesn't seem to interfere with the MIXES using the GEAR channel (unless you leave the GEAR switch on!)
I'm going to add a Pico switch to channel 6 (FLAPS) so I can power down the tank by flipping the FLAP switch from the transmitter.

Hope this helps someone to set up their DX6i

Chris