True, as far as I know. Makes sense about ATC requesting and approving VNAV. However, X-Planes ATC sometimes just doesn't work..😒
I had many issues with the A310 climbing and pitching up way to much. Using the correct loadsheet and aircraft data from the Inibuild manual to calculate the T.O in FLEX mode and accordingly the correct inputs for the FMC. Plane is correctly trimmed (sometimes values of 1.6 nose down are suggested?) but even then already on the runway wants to pitch up, making it very difficult to follow the center line). And in cruise flight, the speed is controlled by the FMC but any ALT change is manual (which means I have to practice a lot what V/S to set in order to reach the target ALT at the right moment)
But guessing I just have to practice a lot with the A310..