Agree with LePaul. People want to control it from Cura as we're doing it with Repetier Host, Pronterface or Simplify3D!
The new preheat and Gcode send tab it is really insufficient. We need a configurable movement jog (capable to invert directions), layer fan level, flow rate, speed, stop motors...
At least for me, its a must to leave others hosts/slicers.