Lol payl, that's a good idea
But seriously, you've already added sun lighting settings for the outdoor area. For the new way you need to add texture lighting or something else. There're a few nice lamp textures.
After that you can try to run a final compile, because a map without final compile is always unplayable.
Make sure that there're no errors and/or warnings while compiling. If not, fix them or tell us what error you get.
Make sure that your numportals are lower than 10.000. If not, detail stuff like boxes, barrels, trees, tables, chairs, etc. that doesn't block VIS.
If you have troubles while compiling, post the compiler message here.