ATC window key combination with zoom in - out keys

[VOR_Active 4]

Hello all,sitting in the cockpit, on any default or addon airplane, i use the '-' and '+' keys for zoom in and zoom out. So far so gut. The problem comes when i select the ATC window to appear on the screen by clicking the Ö key (i have the german keyboard QWERTZ). Then the - and the + keys are not functioning for zooming in and zooming out.I find this problem rather strange because everything works fine.Thank you for any feedback

[Andydigital 93]

You need to click in the main view window, the window where you look out on to the world, click in that window with your left mouse button and now you can use the + and - keys to zoom in and out again.

[VOR_Active 4]

Thank you Andy for the help