Restrict access at service catalog level ? and structure for service catalog

[Servicenow lear]

hello All,

We are restructuring our Service catalog design.

Few questions I have is :

>>Can we restrict access to Service Catalog at catalog level ? rather than item level ? using user criteria or such ?

>>what is the best Catalog design ? what is the criteria to define multiple Catalogs or should we stick to one catalog ? best practice ? 

[Stephen Rosenth]

Hi Azar,

Is there a way (or recommended way) to restrict access to the Fulfillment Step records?

Thanks,

Steve