So, I'm currently flying with the auto-engine management option enabled (cross shopping for a new throttle quad to make that less painful), which basically means that the "throttle" input acts like the thorttles on a modern FADEC equipped plane; mo throttle, mo thrust, and that's tthat.

For most aircraft, this sees the Mixture set to auto-rich, the props set to constant full forward, and the AI goes about managing the thermal aspects of the engine (opening/closing various cowls as needed), and limiting Manifold pressure so I don't blow up the engine.

But in the A-20, both the Prop and Throttle levers move in tandem. I find it had to believe that pilots would somehow keep all four levers (set to unequal heights) moving in tandem, and would think the general procedure for a constant speed prop would be to "set and forget" for full prop RPM, tinkering with it only during cross country cruise for max efficiency. Was it actual practice for pilots to adjust RPM and throttle at the same time on the A-20?

P-39 with this AI 'engine aids' On has the same behavior - pitch lever is "glued" to throttle lever.

Is this how it's supposed to be?

Is this P-39 video is not show in that way.

https://youtu.be/JwksKXoDALI?t=1397

Thing is, Bo'X has too much "take the player by hands", so this could be done in that way to be friendly "for new players", the guys with all this 'aids" on don't care how are the real thing.

One of the problems there, is that it was basically "all or nothing" with the previous "campaign"; you either had all the aids on, or all of them off.

If you want, say, realistic engine controls but some help with labels and navigation, as well as the ability to look outside the airplane, you were out of luck. That appears to have changed with the recent update though.

If the campaign allow choose only NORMAL or EXPERT, select NORMAL and then turn off - with shortcuts all the "engine aids" (need do this at every flight), then the only difference between the two modes became the external camera, but the "HUD", "labels" is all or nothing.