Another question related to the posted images above is the mullion. Most of the window frame and curtain wall’s mullion are not exported, but there are some window’s frames got recognized and exported. Can you explain a bit more how can we set them as recognizable?
Another great question! I’m copying the answer from the WIP documentation that I should publish soon. Let me know if you have any follow-up questions.
Does Pollination include the frame thickness in the exported window?
The answer to this question is different for windows vs curtain wall panels.
Windows
In most cases, the window family includes the frame as part of the family, but with a different material. You can include or exclude the frame from the exported window by selecting or deselecting the frame material.
Curtain wall panels
The frame is not included in the curtain wall panels. We currently don’t have an option to adjust this value in the selection step, but you can use the Offset Window command in the Model Editor to adjust the window size to include the frame.