System Settings/Windows Management
Window Behavior
Here you can configure how your windows behave with respect to getting focus, receiving various kinds of mouse clicks, when being moved or opened. Task Switcher
Define how you want to switch between windows. KWin Script
Activate, deactivate and get new KWin scripts to customize even more how you interact with KWin. Window Rules
Configure specific settings for individual windows based on their title or the application they belong to.