Batch adding attributes

HI all

We receive a bunch of Microstation files from various authors/vendor/clients.

Since  those all are create from various template, the attributes attach to those files are not homogeneous.

In order to help make those files more similar, I need to add a set of attributes to incoming files.

This way If files are being exchange ( export to a none manage environment), we will still have a common ground to sort file when import back to our system after review or rework.

I hope that having the same set of attributes, will help us on the medium/long term.

How can I do that in batch? Is their a tool that will allow me to fill the name of those attributes and push those attributes in a batch of .dgn file? Can this be done inside Projectwise?

Can that tool be redistribute to our vendor/client/Author so they can update .dgn file before sending us the data?