Have other workers edit someone elses form

Have other workers edit someone elses form

I created a form. I want another user to be able to edit it. He logs into forms. He does not see my form. He and I are both enabled to use forms. On the upper right, if you click on 'ogranizations' button, our company is checked on both of our computers.

I can see how to transfer ownership of the form. But not to enable others to work on the form. I can't believe that only 1 person in the organization can work on only their form, and co workers can't edit it?