[Espeefan]

For what it's worth, many of the computerized radios can be programmed so that just about any channel is assigned to any stick, toggle switch, knob, dial, or slider switch. In that respect, the combinations are unlimited. There are also some radios out there with two sticks and dual slider switches next to the sticks for other channels. I believe those brands are Polk, Multiplex, and maybe the European Futaba F14, or F16 I think? Probably an ideal radio for something that requires more then 2 sticks for ease of use, although the higher end standard two stick radios often times have slide switches, which could run a track drive for an excavtor, while the sticks run the boom, dipper, bucket, and rotation. My Futaba 12FG has two slide switches on each side of the radio, about where your index fingers naturally wrap around the sides of the radio's case. You can control them with your thumbs from above, or with undex fingers from below. They can be run just like a stick. Fwd/neutral/reverse, although they are not spring loaded to neutal like the sticks. I also know my Futaba 12FG has 6 three position toggle switches which can also be assigned to any channel.