Can we use "Azure Trust Boundary" stencil for "Azure Active Region" component in Microsoft threat modelling tool?

I am trying to do threat modelling on application hosted on Azure cloud. I am using Microsoft threat modelling tool 2018 to do threat modelling.

When i try to replicate "Active Region" component in my threat model, there is no stencil specific to "Active Region". Can i use "Azure Trust Boundary" stencil in Microsoft TMT tool instead of "Active Region" component that is present in my architecture?