Restructuring my rails project

I currently have two controllers, models, and views called retain_users
and retain_queues. That is going to grow to have retain_pmrs,
retain_customers, etc. So I’m thinking I need to have: retain/quues,
retain/users, retain/pmrs, retain/…

Couple of questions:

Would my code change from:

class RetainQueuesController < RetainController


Module Retain
class QueuesController < RetainController

and the file moved to retain/queues.rb

Or can I keep the same names and just move the files?

The other question is does everything have to match? i.e. do I have to
move the view, models, and controllers together?

Is there a “How to” already written up on how to do this somewhere?