Hi Izzy,
Thanks for the explanation as well as responsiveness in working out a better way for the community.
I’m not familiar enough with Speckle to understand how to attach a custom property to the mesh itself with Revit. However, it seems like you have made that an obsolete requirement.
In a mad dash to a solution @Wassim_Jabi built up a collection of Speckle nodes for sverchok on Blender to receive Revit custom properties. These nodes should be posted to github eventually for the Speckle community.
Again, thanks your responsiveness and the workaround.
Best wishes,
Jake