it is possible and not too tricky. I will release soon a new MapBuilder editor update, which will contain a normalmapping shader supporting 8 dynamic lights with optional specular mapping. I can do one that supports level lightmap too (just a little bit different skin setting is needed and an additional texture sampling). but first I have to finalize a couple of things, requiring maybe one more week...

to be honest I really don't understand why the included shader package is so limited and unchanged for years... and the shader workshops... some of them are good, but difficult to extend/customize, so normally you have to make your own shaders based on several information sources, due to your actual needs. it is a quite DIY style engine, but forum members are helpful