Settings → Windows

A grid with one row per window — Maps, Discord, Spell Timers, DPS Meter, Mob Info, Console, Trigger Editor — and three columns:

Column	What it does
On top	Keep the window above the game (what makes an overlay an overlay). Applies on Save.
Opacity	Window transparency — previews live as you drag the slider.
Click-through	Clicks pass straight through to the game. Great for HUD-style overlays; remember you'll need to come back here to turn it off, since you can no longer click the window. Applies on Save.

The Discord row has an extra Discord background opacity slider, which controls the overlay's backdrop separately from the window itself.

Window positions aren't set here — drag the windows themselves, and use tray → Window Layouts to save named position presets (Windows & Overlays).