Stencils as Symbols - Update Instances

I am familiar with Stencils in Omnigraffle. How do they compare to Symbols in software like Illusrator and Sketch? More specifically, in these other apps, if I place an instance of a symbol on the canvas, and I update the parent / original symbol, all instances update to reflect the changes. Is there a way to do this in Omnigraffle? In omingraffle is there any link or relationship of the instance to the original parent stencil, or is it just as if I copied and pasted another object in my file - with the only difference is that the original is defined in a stencil file and is accessible via the popopver?

This a question. But if I can’t do this, its a feature request similar to:
https://discourse-test.omnigroup.com/t/feature-request-master-propagated-stencils/12547

We do have LinkBack as an option. You might try https://www.viget.com/articles/how-to-make-master-objects-in-omnigraffle and see if it works for you.