If I not dream I see a post of JCL
and gamestudio A7 goes to support 4 uv
and already in beta testing

you try to search

The ventilator plug ins is a great tool and probably all other engines except a minority using external tools for make the lightmappers (3d studio by sample)

and the quality and speed of the pre-calculated lights are much better (raytracing lights prerender with 3d tools and anytimes winth plug ins tvray, carrara 6, vue 6 all can be baked) that shadowmaps pixelshaders