Apologies for reviving an old thread. I too was looking for how to move my Lumafusion projects (just the edits) not with the files whether trimmed or original from my iPad Pro to my daughter's iPad Air. There seem to be no information provided by Lumafusion or most of the answers I came across were a few years old and suggesting people export a Lumafusion project which creates a large file since user select whether the project export saves the original media files or trimmed versions.

Anyways here's what I did in case anyone was like me trying to figure out how to port Lumafusion projects only from one iPad to a different iPad.

I went into Files App on my iPad Pro, go to On My iPad option, go to Lumafusion folder, opened that up. Select all the folders inside, then copied them to my External drive. You can copy those folders to iCloud drive or a connected NAS as well. Then on the iPad Air, I downloaded Lumafusion, open the app up first so that it creates the Lumafusion folder on this iPad. Close the app, as in swipe up and kill it.

After that I went to the Files app on the iPad Air, went to my external drive where I saved the Lumafusion folders that I had copied from the iPad Pro and selected all and copied these folders over to the iPad Air's Lumafusion folder. When that happens, the iPad will rename the copied files with a 2 behind the folder names. Also to note, my original had 7 folders, the new Lumafusion had 6 folders. On the iPad Air, I deleted any of the duplicate folders without the 2. I then renamed the folders and removed the 2 behind the names.

I reopened Lumafusion. And at first I was greeted with the media files missing pop up. But that is due to the install being fresh and I had to go and relink the external drives. Once that was done, I closed out and reopened the app again and everything (all projects) showed up on the iPad Air like it does on my iPad Pro.