Scene bake for Augmented Reality scene

hello friends…

the standard way (the only one i know) is to spawn object via Blueprint as Handheld AR Template shows… this of course has a lot of sence because final user must to manually adjust the place for the objects… This means all objects need to be blueprinted to make them spawn on scene…

After this, i was wondering what is the best way to bake lightmaps for such objects inside unreal and then show them on Augmented Reality scene, i dont really see a way to make it more than applying bake textures from 3d modeler… is it the only one method?

Thanks.