Regarding the all in one control, there is a variable stability Bell 205 in Canada with a twist grip yaw control, conventional motion cyclic control and collective control all on one single side mounted joystick inceptor. The collective action is through the raising and lowering of the whole grip assembly.
I recall not liking that (try doing a quickstop!) but having yaw as a twist grip on the sidestick control was very intuitive.
Combine the sidestick controller with a translational rate command through a height hold AFCS and I guess thats what Commanche has for low speed work??