Is it possible to spawn a mesh with lightmass on ?

I have a blueprint which is spawning meshes, the only problem is that I’d like the meshes to use lighmass. Is it possible to store the lightmass information somehow and then spawn the meshes with it already on ?

They must exist in the level when you build the lights so no, you cant. But you can set their visibility on/off.

Sad times … but thank you for the answer !