I have used the Coolpoint many times on Daikin and Mitsubishi splits and VRV. It works perfectly. As with the normal AC system remote, the Power_OFF and Power_ON are the unit Off/On in its same state. Mode changes H/C/F? and SP adjust Set Point. Only word of caution is don't display Room Temp to the user, unless you have a separate wall mounted sensor in a good place, otherwise it measures the temp in the return plenum by the fan coil, and this is wildly different from the RT. My usual TP layout is a simple ON/OFF, SP with UP/DN and MODE. Sometimes louvre control if appropriate.
