How to set Windows Mode?

I have searched the forums and see a reference to Windows Mode. This says go to Settings/Graphics and select Windows Mode (WM). i have done this but don't see WM.

I do see Resolution (2560 x 1600) / Limit frame rate 120fps / Lens flare effect on / 3D graphics Vulkan High quality aliasing on but no reference to WM

How can I run Windows Mode. please?

Thank you,,

Tregarth

To expand on this rather brief reply:

1. In Settings go to

2. Graphics Settings and Make a note of the current resolution (saves some grief if you make a mistake later)

3. Click on the left arrow until Window Mode appears.

4. Return to sim.

Running in Windows Mode is a revelation. It is really amazing and really shows AeroFly to good effect.