Since (I believe) MIK writes the cue points directly to each file as Serato cue points, you could use the Serato import to bring these cues into Engine Prime. Here are the steps to do so and a bit of explanation as to what’s going on for some.
- Export cue points in MIK as you would to a Serato collection
- Import all tracks into Serato
- Open Engine Prime, go to the Serato tab and hit the update button on the bottom left of the screen. Wait until this is complete
- Select all tracks in the Serato Library, right click and select "Re-import Track Information. Because this is done from the Serato pane, it will also pull in the Serato Cue points. This will also refresh any id3 tag data, just so you know. Obviously any previously created cue points will be removed/overwritten. This will allow you to keep your crate structure, since the only thing we are importing from Serato are the id3 meta tag data and cue points.
Because this is a big operation, I would also suggest creating a backup of your Music/Engine Library folder by selecting all files within and making a Zip file. That way you can experiment with impunity and have a restore point if you accidentally overwrite some data you didn’t want to.
As for the key, Engine Prime should use the key if it is written in the ID3 tag data. The idea is that if it’s there, it’s assumed to be correct.