I was watching a tutorial on texturing. There was shown a way to separate the glass part of the windows so you won't keep on clicking on them while you're texturing which I admit made things a lot easier.
Now I want to work on texturing my windows but I have no idea on how to select them. They aren't on a different layer. If there is a clip board option on here I haven't found it yet.

Tab, select desired object andTabto enter Edit mode for that one. – Mr Zak May 10 '16 at 20:40