r.Editor.Viewport.ScreenPercentage
VarUnreal Engine Var console variable.
rEditorViewportScreenPercentage
Description
Controls the editor viewports' default screen percentage when using r.Editor.Viewport.ScreenPercentageMode=0.
Usage
r.Editor.Viewport.ScreenPercentage [value]Set via the console (~) or in DefaultEngine.ini / DefaultGame.ini.

