B2B - Show In Stock Items Only Filter

It would be beneficial to have a Show In Stock Items Only Filter or Checkbox on the B2B for individual customer control.

Especially when viewing and navigating large product catalogues.

We are a B2B business representing brands and need to display the brands complete product catalogue on B2B - in order to allow backorder (need be) for our trade partners.  

Having this filter would allow far greater control for our customers to stock on hand when looking for available options.