Every time I go to the build menu I have to then click to show what is currently built in my city so I can decide if any of the available choices are what I want. It's very annoying. I would like to see the build menu just be a part of the settlement's screen.
Also, I have to say I absolutely HATE the idle prompt. If you wouldn't stack them (you dismiss one and another comes up immediately, right over the build menu in many cases) that would be fine, but right now they are just managed VERY poorly.