HI I've never done this before but I was hoping someone could help me. I recently installed TSRW. When I go to create a new project in Ts3 and open Modular object only surfaces, nominal and Kids should up and only countertops appear when I click on them. No idea why this is happening

Yes. As far as I know, that's all they list in that section.

Oh ok thank you I thought there was supposed to be more there

Swingsets, sectional sofas, and bunkbeds are also MDLR type objects. That's why there is a Kids section, and you'd have to add Late Night/Generations to your TSRW settings for the sofas/bunk beds.

You can see the full list of MDLR objects in Sims 3 Object Cloner (S3OC) from the Cloning > Modular Objects menu, if TSRW actually doesn't display them for some reason.