Hello folks, im trying to set a visual filter/2d fill pattern(if filter not possible) on a specific wall layer function from a linked project (for exemple i want to set the insulation(index =3) function layer of all walls visible in active view with a specific visual filter , is it possible? also if possible to set by material , for exemple i have two different materials of insulation(two different visual representations) of the same wall layer function but they have different materials , i want to set the visual filter to only the insulation layer that has a specific material!, the hard thing i encountered is that its from a linked project and not an active revit project
How much of this is possible “manually” through the UI? You can only automate what Revit actually allows.
The simplest solution sounds like just applying material patterns and showing those in the views. If your local model has the same linked materials (same ID) you might be able to just set the patterns in your material properties. Otherwise, you’ll probably have to import or copy the material and then modify the RVT Link settings.
i want to find a way where i dont need to open the local model , i want to create visual filter directly on the host project, is it possible?i dont want to keep going back and forth to the local project
The local model in this case is the model that you have the link imported into and presumably want to create these wall section views in.
What have you tried so far? What part of your process are you trying to automate?
EDIT: It seems like while the pattern itself cannot be overridden for materials, the Cut Line Style can (Revit Links > Model Categories > Override Host Layers). If you just need to highlight that layer function, that’s the easiest solution. If you actually need to change the pattern then you’ll have to automate a bunch of hatch regions to mask those layers with a new pattern.
Looking at your other (locked 
) post it look like you want to draw
a Insulation Batting Line over the Wall.
If that is the case, then have a look here 
It is kinda an old post, but the method should still work.
i cant seem to find Override Host Layers in dyanmo , ive tride overide graphic settings , but it wont work, and also changing compound structure layer material wont work also since its linked , my goal is to be able to apply specific cut fill pattern and color
hi thanks, ive installed Insulator plugin but appearantly it works only for revit 2016/2017 since i couldnt find it in revit 2025 after installing it
Override Host Layers is in the bottom right of the Model Categories tab of the Visibility/Graphics window (or Revit Links override page), but it only highlights layer groups via the section outline.
If you want to override or apply your own cut pattern you’ll have to “manually” draw fill areas with the appropriate pattern and color. This can be automated, but you’ll have to define the logic for identifying and drawing the fill areas in section views. Start there and see how far you can get.