I use KRunner a lot for switching between opened windows.
At the beginning, KRunner prefers opening new instance of application rather than switching to existing window.
I know that only when I switch windows frequently enough, the Window section will be placed at the top of KRunner search result instead of Applications section.

My question is whether there is an option to force Window section to be always at the top of search result so that I can quickly switch between windows for all running applications, and of course open a new instance of the application if it is not running.

Thank you very much for any help.