I watched someone editing style display component over-rides one by one, so thought this worth posting. When editing ADT Style properties if you want to set the same value to several display components select them all, std windows control/shift selecting works, then do the edit. That way the changes are applied to all selected components with one edit.
In the example below I want all the space components to have the same 254 colour override. Selecting them all then selecting the colour applies the override in one operation. If the value you want is present on an existing component (e.g. Net Boundary is 254) select it for your edit as the value is “pre-selected” when the dialog comes up saving another click.