Hi DamienWhen I'm in EXT/AC and I start the APU, my FO doesn't have a clue what to do next. The config panel still shows "EXT/AC" and the FO doesn't even turn the APU Bleed on in order to start the enginesDo I have to wait for a specific moment to turn the APU on? Normally I do it about 5 min before pushback and change the "EXT/AC" in the config panel to "APU". After the start procedure I ask the ground crew to disconnect the GPU and external air. Then I start the pushback. But I always have to change to "APU" manually.I'd would be nice to be able to speak to the ground crew before the completion of the before start procedures. In this case I could disconnect the GPU and externel air a bit earlier. Or would this not be possible in RL?RegardsAdrian Kranz