this request might be silly, but maybe helpful to others as well?
when using car, bicyclist, or people proxies I need to know the direction they are facing and which model they are. i always use bounding boxes and draw a line or arrow on the top of the bounding box to indicate the forward direction. i will typically add the proxy name to the bounding box as well for ease of reference. that way i can see the direction and type at a glance when i have dozens of them in a streetscape scene for instance.
face-skipping would work, though I would have concern about the additional geometry.
I would probably end up using the billboard proxies instead. those would be preferred to the bounding box. they take a lot of time to create manually, but if it’s automated in transmutr that seems the best solution!