ODB Drawing production - Filled colour on faces

Hello,

I'm trying to get an opaque colour fill on faces of 3D elements in a drawing. For example a concrete wall which should just show up grey.

How can I do this?

I found this tutorial about setting up geometry maps for patterns: Using Geometry Maps to create Elevation Patterns - YouTube I don't see how that same methodology could be used.

When using the "Filled Visible Edges" display style it doesn't work. When I use that display style on a model it works only until there is a clip volume set. I guess that's why it's not working in a drawing.

I would have expected this to be in the Family/Part editor. There is a very good way of setting up the same thing for sections. But it doesn't exist for "forward" representation.

I'm attaching an example of what I'd like to achieve. This drawing isn't created with any Bentley product.

It's a cut at about 1m above the floor slab. The "cut" representation of the walls is without fill colour and with line stile set to some kind of dashed lines. The "Forward" representation should show the position of the foundation piles (in cyan on the picture) also in a specific line style.

So far my approximation in OBD looks like this (don't mind the openings, or the difference in style for the walls), the foundation piles are not yet present in the 3D model so they can't show up:

=> I think you'll agree that it looks a lot different.

Thanks for the help in advance!