Your best bet for that to “possibly” work is to create the project/bin at the ingest side with Media Composer, then bring that and open it in MediaLog and continue logging from there. This way you are assured that that TAPE IF. and related MOBs are correct for relinking later. From their, your friend can add to the existing clips, but I don’t think they will be able to subclip in MediaLog. They can choose from the exiting “tape” names that were created and log from there, and that should work.
It is a little tedious to be bouncing back and forth between the Capture Tool to make a clip, then back to the bin to log the additional data.
Something to consider is using something like Excel with the right column names as well as exact match on Tape name which can easily be turned into an ALE then merged back into to the clips that were created upon ingest. The merge process could create subclips for every event in the ALE file.
Avid offers Interplay and their Assist tools for this type of work. If that is not part of your infrastructure, then there is not a whole lot other than getting a 30 day free trial of media composer and a copy of the ingested media to work with. At least for 30 days… 😉
Michael