Please, could you recommend some applications and/or ROM which could help me achieve these things on my Nexus 5?
1. I'd like more customizable Android overall (guess any more advanced custom ROM would achieve it?).
2. A use for the drop-down top menu (or what it is called), from my old HTC I'm used it to show recent apps, however a brightness slider there would be also nice.
3. Customizable home-button pressed menu.
4. Long-pressed back button=menu.