It doesn't appear that a filter can be applied to objects created in different phases. I'm doing a building addition, and I'd like to show some objects with no surface pattern in the existing phase, and with the surface pattern in the new phase. For instance the roof, I would like to show the roof pattern on the new roof but not on the existing, and I don't really want to create separate roof types. Is there any way I could do this project-wide without having to go into every roof plan and elevation view and overriding the existing roof in each view?