Hi
FWIW you can use media manger, but its really designed to “clean up” the project once you are done editing, either to archive stuff, or make room on your media disks for recapturing at a higher resolution.
its also useful for making low rez copies of high rez media, allowing you to offline edit a High Def or Uncompressed project on a laptop. (supposedly ProRes 422 has made this possible without having to media manage)
The best thing you can do, as well as the fastest, is to keep all your folders ie file directories organized at the Finder level, and then you can just copy one folder and all your stuff is there
Larry Jordan, who is a reliable FCP guru, has a system that seems pretty foolproof.
https://larryjordan.biz/articles/lj_archive.html
hope this helps
“I like video because its so fast!”
Bob Flood
Greer & Associates, Inc.