Give customer access to organization specific attachment (via asset)

[Robert Nichols]

So I'm looking for the ability to provide our customers an organization specific file. 
I've been using assets with the user and the organization which works well, however I can't see a way that the customer can access any attachment uploaded to an asset they are linked to. 

I was looking at other ways to do , including automation  based on a send me the file request, but can't see a way to do this.

Has anyone worked out a way to do this ?