I love to be as realistic as possible when flying in the sim, and I am well aware of the procedures many airlines have in case of an inoperable APU. I have had GSX PRO since it released for 2020, and have been eagerly waiting for the day a simple tick-box would make its way into the settings menu to allow people to perform crossbleed starts. (1 engine start at the gate prior to Ground Power disconnect followed by a crossbleed to start the other after push). Will this feature ever be added, it seems so simple to implement, by simply removing the inability to push with an engine running at idle. Thanks