Service Catalog Usage

Service Catalog Usage

We have spent a fair amount of time developing out service catalog templates. We would like to only use service catalogs instead of Incident request. Is there a way to disable all incident request in the system, including the default. 

We would also like to know how to set up the approval process for a service catalog request based on the Group that the request has been assigned to. In other words I want separate approvers based on the groups. 

Thanks,             

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