I imported an HDA into unity successfully and was planning to use either groups or colors (in this case both are applied to the desired faces) on the faces atop pillars so I can access them either through script or other means as procedural spawn points.

However I've run into an error saying isReadable is false, and that Read/Write must be enabled in import settings, this error I get whilst trying to access the data of vertices/faces within a unity script. Do I access import settings through the Houdini ENgine plugin? Or is it something I change while creating the HDA in Houdini?