I use 720p (1280x720) frame size a lot. Unfortunately the only way to set frame size is through Render window for each project. Often times when I start a new project I forget to set the frame size until the project is ready to render and then changing frame size messes up the entire scene so I have to adjust all the camera movements, all the framing of the characters, etc. Needless to say it's a hassle.

It would be really great to be able to set up default Frame Size in Preferences. OR in the very least make the software prompt you to select frame size when starting a new project.