Windoos:

If I had already written code for this, I'd be happy to share it with you.
But I have not. I suspect you're not getting any answers because nobody else
has either. It's not terribly difficult, but to do it on a volunteer basis is
asking a lot. (I think.)

In general, you'd need to convert the CSV string (I'm assuming it's stored
in a document) into an array (maybe using the Split function), or create a
loop to get the next element in the string into a variable.

Then you'd need to convert the string into the property name, maybe using
the Mid function.

Then you could use the Add method of the CustomProperties collection to add
the custom property.

Look at the online Help for the CustomProperties collection, read about the
add method, then experiment using constants. Once you can do that, work on
converting your CSV string into the set of variables you'll need.

Bear