Yes CG they are both the last generations of sorts from the single stick era. Both were new in the middle nineties. Both have many features including Expos and triple rates and a lot of mixes but still just one model radios. The Futaba even has an accessory umbilical cord that plugs in and when the sensor end is pointed at the propellor gives an RPM readout on the screen.

The elevator and aileron (rudder if no aileron) is as normal on the stick. The rudder is as you suspected operated by rotating that large knob at the top of the stick. The Throttles are sliders on the top right corner (Futaba) or top right side (JR) .

When flying you operate your three axis on the stick with your right hand and your left reach ove the top or top rear to the throttle sliders. Its easy to spot someone flying a single stick since they always look kinda humped over hugging their trannys sort of like Lon Channey as the hunchback of Notre Dame.

John