Duplicate Tabs

Duplicate Tabs

I'd like to run both of the sides of my business separately in the same CRM.  Since I'm in the direct selling industry, I have customers and also downline partners/distributors.  Is there a way to have leads & accounts for customers and also leads and accounts for partners at the same time but separately??
 
I know I could view them differently by creating custom views, but I'd like to see tabs at the top that would essentially be duplicating the Leads/Contact/Accounts tabs.