How to add Wireframes in XD on macOS?

Hey there, 

I'm brand new to XD and in the How To videos there was a section on accessing and using wireframes for basic setup/layout options.  In the video it showed how to access wireframes by clicking file within XD, scrolling to "Get UI Kits" and then clicking the "Wireframes" option.

When I went into the app to try this out, there was no Wireframes option (see attached photo), there was only the Apple, Google, and Microsoft kit options and then the "More UI Kits" options.  When I checked out those I was a little lost on what to get and how to open each within XD. 

So my question is, is there a way to add the Wireframes option or do I need to create my own and once that happens will they be saved as such?

If I do need to create my own, are there any kits you guys would reccomend? 

Let me know, and thanks so much!

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