These are really good questions. So, for your readers to share the email on social media, you are going to click on the Header Options when you are editing the email you want to be shareable. If you checkmark the box next to Social Share Links, it will place a button at the header of the email that will allow your readers to share on their own social media. This option is available on our second generation editor, which you are using. Here is a graphic showing the box you will check under Header Options:
The main difference between the Second and Third Generation Editors is the view of the edit screen. Here is an article that will show you some of the differences between the two.
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