It should be nice to be able to belong to multiple organizations, but it does absolutely no good if I can't access multiple organization catalogs.  If I create a course in a secondary organization, I cannot view it in the catalog. I have to log in to an account belonging to that org, just as I have in the past, which seems to defeat the entire purpose of belonging to multiple orgs.

I was so excited to hear we could assign multiple orgs to an account, but it does no good at all for any of our needs.

Also posting another vote to add learners to multiple orgs.