What if you had something like a "Parent Control". So if you had two Artboards and one had an element that is from the other. However, if you made an adjustment to the "Parent one" that had just a specific element. When you make an adjustment to the parent it automatically and real time adjusts in the same way the element in the "main" template. I hope this makes sense and is easy to understand. It's just an idea and wanted to share it. Thank you for having forums!!