Sometimes we have new users that are very capable and can edit posts on many of our blogs. I can easily add the user to a certain blog (and set their role etc.). But it takes several steps to then add them to our other blogs.
Sometimes a basic user can do a more advanced role(s) and thus their role needs to be upgraded on several blogs. Also, because we have a lot of blogs, and several administrators (managers of areas) who may add that person to a blog already may all try to add that person (in vain). (Ie. that person may already be a member of a certain blog).
To avoid adding the person twice and skipping some blogs, it would be nice to have a list of which blogs a specific user belongs to (and their role).
Is there already a method built-into wordpress that can do this?
Otherwise is there a plugin?
Else is there some php that I can use?