Investors & landlords

Thanks @Carl  , I think I get everything you are saying.  At first I wasn’t going to select “I rent a part of my home” because it was a separate building on my property, but it seems like that option actually is the better one to pick in my situation. 
Under the “rental portion only” expenses, is that where I also list Maintenance/repairs done to the rental part of the property?  Would rental improvements (adding to my basis) that I want to depreciate go elsewhere?