In the many hundreds of hours I’ve logged in FSX, I don’t ever recall needing to change to VS mode EVERY TIME I wanted to change AP altitude. I would set the AP altitude to 10,000, engage Alt Hold, and the plane would climb (or descend) to 10,000. If I then wanted to descend to 6000…I would just dial the AP altitude down to 6000 and it would descend.
In 2020 however, in every aircraft I have tried so far (all of the Cessnas, King Air, 747, etc) it behaves completely differently. If I dial in 10,000, and engage the Alt Hold, it instantly changes my setting to whatever the current altitude happens to be. I need to change the mode to VS hold, set a VS, and while its climbing or descending set my new Altitude. Once at that altitude it will hold, but when I need to change altitude its the same thing: I need to change to VS hold, THEN set a VS (every time), and THEN set my new Altitude.
I guess the question is, was FSX accurate or is 2020?