Assign a layer to object in grasshopper

I’m looking for how assign layers to breps or geometries before bake in grasshopper.

I would like that when I bake automatically lot of geometries, grasshopper generate in Rhino the layer and put the preassigned objects inside this layer.

With Elefront creating blocks I can do it, but I don’t know how do it without blocks.


Elefront works on all geometries (and annotations) in that manner as well.

Ok. Thank’s!