Is there a way to have more than one person have collection owner access.

I configured role base service 2 and now I am the collection owner but no
one has any roles or tasks other than me. Is there a way to give more than
one person collection owner access? If not there way to revert this back so
to the default before I ran the collection. I don't have the time to create
roles for everything.
I have a test box and when I delete the role base service 2 I lose every
role and task.