This is my current process. I have 16:9 source, and I know the end project will be 400x225. The clips are currently 400x225 as well.
In previous versions of premier I would use a project preset for 16:9, then just export to the dimensions I needed.
I import my video clips, and they take up a small portion of the screen since they are smaller than the default settings. When I go to export at 400x225, it shrinks the entire project, rather than cropping it to the dimensions I need.
How do I handle this situation:
1) Create my project as custom at 400x225 at start
2) Scale up my video when I import, then scale back down when export.
3) some other way