LORBY - AXIS AND OHS V4 FSX P3D MSFS
I couldn't use MSFS without AaO anymore since it automatically switches profiles based on the aircraft I'm using, it provides a lot of functionality to the StreamDeck, multiple peripherals etc. You can use sim events that are not available in MSFS for binding, save multiple combined templates and apply them, create detailed scripts, have voice recognition... And the support is incredible, feature requests are implemented in the matter of a few days, regular updates are released. It's simply a must-have!