Thanks for your inquiry and welcome to our Forum.
At the moment section cuts will not allow light entering as the geometry we receive from SketchUp into Enscape itself does not reflect what you see in the CAD solution itself.
Still, the ability to allow section cuts natively by Enscape is a feature that has been requested before, and you can also forward it as a wish through your name via our portal as detailed here. This way product management can track the further demand for this. Thank you again in advance!
Any change with SU2023 ?