To Remove All Layer Property Overrides From the Current Layout Viewport
On a layout, double-click inside a layout viewport to make it the current viewport.
Click Home tabLayers panelLayer Properties.
In the Layer Properties Manager, right-click the property override that you want to remove. Property overrides are in columns labeled VP Freeze, VP Color, and so on.
Click Remove Viewport Overrides For [ property name ] In Current Viewport Only.