Please add the ability to search the canvas for exact matches of a master component to turn into instances.

Scenario: you’ve created an element (button, icon, whatever) and forgot to make it a component. Before long... you have 30 of them scattered around and want to make an adjustment. Oops!

It’d be nice if you could turn one into a master component, then have the option to search the canvas for identical elements to turn into instances of that component.