Purpose of include_coverage() API in uvm_reg.

I was wondering about the need for the API call include_coverage(...) in uvm_reg.  It appears that build_coverage (...) would be sufficient to build whatever coverage is required in the current scope.

Is there a recommended  use model that clearly distinguishes the use of these 2 calls?

As the include_coverage() call contains a scope parameter,  I realize we can specify coverage models for any register object from some other scope... But where would one call this routine ?   For build_coverage it is clear that it applies to the current scope.

Thanks for your help

Loganath