To copy a trimmed version of the original media used in the project select the following options : TIMELINES - COPY - TRIM KEEPING (24 frames for example)
Choose - RELINK TO NEW FILES).
Browse to where you want to save the new consolidated media and the .drt That stands for Davinci Resolve Timeline
Locate where you want to save and choose Open
You will get a comparison of the current project size and the new size of the project after consolidating
Click Start to begin
Progress bar will open and give some progress info
the final export will look like this with the .drt file
You can double click the .drt to open the new timeline in resolve
Choose Don't Change or change it doesn't seem to make any difference.
Or to make ProRes files of all the media > choose >Timelines>Transcode
Choose Video > QuickTime > Apple ProRes > Apple ProRes 422 or 4444
Render at Source Resolution
Retain Sub-Black and Super-White Data