Anyone know how to do this? (Batch user bins)
You should be able to just drag and drop on the OS desktop.
Appending? Seems like that would replace.
or command line, if you are more comfortable with that.
Do them selectively one at a time, and the only ones that would be replaced anyway are ones with duplicate names.
Sorry, I forgot a really important step. You need to edit the _user.bin file and add the nodes that you are copying from the other user. It was a bit more complicated than I remembered, but it does work. On the other hand, you can just Load-Append and navigate to opt/Autodesk/users/name of the other user/batch/pref and load the batch directly, then drop it into your own user bin.