Set Default Lookup Type for Customer Lookup in MS CRM 2013

Hi,

I know there is a workaround for setting a lookup type as Contact for CRM 2011. However this doesn't work for CRM 2013.

Has anyone succeeded in finding a workaround for this scenario in CRM 2013. I need to set up default lookup type as Contact in Customer lookup and also similar requirement to set default lookup type as Contact for Email 'to' field

Thanks in Advance,

Ravi