choose. In Final Cut Pro 10.3 or later, you can set storage locations for four categories of files: • Media: Imported files, proxy and optimized files, and ...

https://www.apple.com/jp/final-cut-pro/docs/Media_Management.pdf

2020 Roundtrip Workflow Using XML Transcode to optimized or proxy media 1. Select the RED RAW clips in the browser, Control-click them, and choose Transcode...

https://www.apple.com/jp/final-cut-pro/docs/RED_Workflows_with_Final_Cut_Pro_X.pdf