Hi, currently it’s just a different lightmap on a different uvmap layer, although I can probably add what you ask for on my todo list. Currently there’s only Direct+Indirect, Indirect and AO as possible options. If I understood you currently, that would be something that is Ligthmap (Direct+Indirect) + AO on the same uvlayer as your reguler textures, and with the materials set up accordingly?
In the meantime, I think in those cases where you want complete maps baked into the same texture, add ons such as these might be more what you seek, although I’m not sure they have denoising support: