On most jets you can’t select reverse thrust in flight. The thrust reversers are locked.
Immediately at mainwheel touchdown you select idle reverse thrust.
This setting is usually used for the whole landing run. (forward idle at ~60kts)
Once the nosewheel is on the ground you can increase reverse thrust up to max reverse.
For the landing performance calculation reverse thrust is not being used on dry runways.
Btw. reverse thrusters ar usually rocket engines and mainly used on space craft.
Excellent, I didn’t realise it was likely deactivated in flight, as when I was pressing button to pull back to idle, I was thinking I might accidentally put throttle into reverse, good to know.
I also used to press breaks button on landing, (breaks used for taxi) but seems I don’t need to do that as auto breaks take care of it.
I don’t use ATC and AFAIK the ‘flyback’ bug is there since day one of MSFS.
If you enter ‘flyback’ into the search page there might be a solution somewhere.
I’m not sure about the Airbus but on the aircraft I fly in real life (ATR and Embraer) the power levers / thrust levers themselves are locked, you can’t physically select reverse until the aircraft senses weight on wheels.
Being able to select reverse in flight for most aircraft is extremely dangerous, there always is a system in place to prevent inadvertent activation (like a simple detent or a air-ground logic activated lock).
Just to make sure, the use of idle reverse is mandatory on most jets.
It’s the application of more than idle reverse which is prohibited on many airports.
The DC-8 and Concorde are a few examples for aircraft which can use reverse thrust in flight.
On the DC-8 you can even select max reverse on the inboard engines.