I know that you can achieve this result using some methods, but is it possible to implement something like render wire in render properties panel? It would be something like global option that when switch on render your scene with default gray material with wire frame on it. Very nice when it comes too big and complicated scenes.

A widget/window that you can turn on and off with e.g. q key just like transform panel. The main idea about this is too place most used tools in such widget/window under icons/buttons, so you can gain quick access to those tools.

It would be great to have a default light and camera in blender, with camera view angle depending on the viewport. The scene would be rendered automatically after F12 without manual adding camera and light(depends on the cursor location). Or after pressing Render button and choosing wanted view with question mark, just like with spin or some other tools.