Objects edges as dashed lines?

I’d like a particular polysurface to display in wireframe with dashed lines at the edges in a particular detail view which is otherwise set to Rendered.

I’d have thought there’d be a way to setup a wireframe display mode to use setobjdisplaymode but I couldn’t make that work - the lines stayed continuous. I tried setting the object’s line print type to a dashed line of various scales, but the lines stayed continuous. I ended up using ExtractRenderMesh, then hiding the polysurface in the detail with HideInDetail, using ChangeSpace on the Mesh, and finally setting the linetype on the copied edges after deleting the mesh. There must be an easier way.

Rhino 7

This works in Rhino 8. Do you have this checkbox in Rhino 7 display mode settings?

Thanks measure, but no that’s not in Rhino 7.

But I don’t think it’s a scaling issue. I think it’s a linetype issue, because whether I set the linetype to a huge or tiny scaled dash, it still shows up as continuous.

To be clear, I was referring to the check box (see red arrow). The scale box next to it is highlighted just because its value is different from the default setting.

If Rhino 7 doesn’t have this feature, my guess is it just isn’t set up to render surface edges as anything other than continuous lines.