Ellipse on NX11 Drafting

Hi All,

I am trying to do a proper ellipse callout using NX11 Drafting as shown...I used the ellipse feature in the sketch, but the ellipse callout is tricky in the drafting.

https://imgur.com/kXKDhJO

So I am wondering how to do a radius callout that also shows its center.

Thank you for all your help.