It would be great if we could model a cube on our models with the name "SnapNode". Then when the model is imported, the cube serves as a snapping point for other snap nodes. The node would be invisible and only used while in the editor.
This would help for rapid assembly of modular-based object modules.
One more thing. The cube dimensions wouldn't matter as the snapping would occur at the center of the cube.
If we used a four-sided pyramid where one vertex is stretched out further from the others, instead of a cube, the long point of the pyramid could indicate the snap rotation too.
I really like this. This shouldn't be a replacement for grid snaps inside of the editor, but it'd vastly speed things up for amateur creators who bought modular kits.
We'll look into this request.