1. be in DayZ
2a. use ALT-Tab to switch to another application running in windows (Win 10) or ALTERNATIVE
2b. use ESC to get DayZ config screen and click with mouse in application running on 2nd monitor
3. do some action in the windows application you switched
4. use ALT-Tab to go back into DayZ
5. leave DayZ config screen (done in 2b.) with ESC key
6. character starts an action (boxing, axing, fireing,...)
7. be CONFUSED :-)