Organizations Feature

I’m trying to implement organizations feature e.g.:
Organizations ( has many users )

I was reading this topic Authorization RBAC with dynamic roles - #18 by morganmspencer but I didn’t understand a log of thing @Chris example ( I’m newbie at redwood )
I setup the schema but I couldn’t continue with creation of organization and with correct assignment between model
Do you want if I can find a better example?

p.s. I don’t want user roles and user permissions