Hi @james4,
Thanks for the update.
There isn’t a way to direct odrive in how many concurrent uploads to do. It has some logic to do that, intelligently, although sometimes it doesn’t make the correct decisions. I have occasionally scripted a copy/move-then-sync flow for times when I needed to control it.
There is a basic script example for editing a file, waiting for it to sync, and then unsyncing it in this blog here: https://medium.odrive.com/sync-client-magic-602d858731de
You could adapt that to copy, wait for sync to finish, then copy the next file, etc… if you wanted to try to control the flow to guarantee only one file at a time.
There are also some other example in “Helpful Tips” here that could be useful: Odrive Sync Agent: A CLI/scriptable interface for odrive’s Progressive Sync Engine for Linux, OS X, and Windows