I think you are on the right path, @Michael_Paparo, but maybe are jumping through a couple more hoops than you need to.
If I had a project with a bunch of mockups, and wanted to replace a Vtab in each of those mockups, here is how I would do it:
Here is the project with a couple mockups and vertical tab controls.
I would start by editing one of the vertical tab control (it doesn’t matter which) and making it look like how I eventually want them all to look
Once I had the control how I wanted, I would start the process of turning it into a symbol. The first step is to group it (in this case, you just want to group it with itself - but you could group it with any other control you wanted to include in the symbol.)
Once grouped, we can finally turn it into a Symbol. In the Inspector (the panel on the right) name the group and click “Convert to Symbol.”
Now we have a Symbol based on our V.Tab control. It lives in the Symbol Library which you can view by either choosing it in the Hamburger menu (yes, that’s really what it’s called…) or using the View menu.
Now I can go through and replace the Vertical tabs in the other mockups with the symbol. I just have to delete the old control, search for my symbol in the quick add field, and drop it into place
What’s great about symbols (as you probably already know) is that you can make a change at the symbol source (editing it in the symbol library of the project) and that change will propagate to all instances of the symbol. You can also edit the individual instances of the symbol (overriding them) to change things like selection. That change will stay with only that instance of the symbol.
I hope that makes sense, Michael. I know it’s a ton of information! If you would like, I’d be happy to set up a phone or Skype call to walk you through it that way as well. Whatever is most comfortable for you.
And, as always, don’t hesitate to ask any other questions. We want you to be a Mockups expert, and are happy to help you with that however we can