Create button and text/popup that can be reused?

I'm new to Edge and interaction design in general, so apologies if there's an obvious answer to this. Any help would be appreciated!

I need to create an "object" (a button that shows/hides a combo of text and shapes, amounting to a text box) that can be reused again and again in multiple projects. It needs to have the same style, color, and formatting every time, but the size and contents of the text box will be different.

Is there a way to do this using symbols? How about something other than symbols?

I need to be able to edit each instance individually, without changing every instance in the project. So far I've had no luck.