as we previously discussed the default buttons are set
left mouse button turn off engine
and the right button to turn on the autopilot

they can be changed in the settings, for example, you can put the engine speed on the left mouse button and use the mouse control function, then the keyboard will not be needed to fly.
//////////////
The test of the new alpha version will begin in a few days, the test of the free version will most likely begin in a month after we fix possible bugs with additional controls.
//////////////