Changing Resolution of Clip

Editing my first feature on PP and discovered some of the prores proxies were created in 3168x1782 instead of 1920x1080, which is the project's resolution. Wondering if I should send the original clips to Media Encoder and resize them, then create new merged clips in the correct resolution, or if there is a way to modify the existing clips in the PP project panel to save the extra steps.

I know I can do it in the timeline to instances of the clip, but hoping there's a way to do it so the entire clip is modified to the correct resolution.

Thanks!