Hi Guys, so I was having the same issue for version 7.1 (so crazy they took it away). Here is how to add share buttons if you haven't found out already:
1. Go to https://sharethis.com/platform/share-buttons-2/?utm_source=googleadwords&utm_medium=cpc&utm_campaign=Search_NB_SocialShare&gclid=EAIaIQobChMI6LSrjKmX6AIVkg4rCh3MGwfQEAAYASAAEgIGXfD_BwE
2. It's super easy, but after you select Activate Now, scroll down and click "customise your share buttons" to pick and choose those you want and don't want, and to change their look and location. Unforuntately they don't have any nice sexy buttons, just the standard, but at least you have them.
3. I only wanted them on my blog posts, so for each blog, I added the code to Settings -- Advanced -- Post Blog Item Code Injection. But you could do the same for any page you want to add them to.
4. And it's done. It's free by the way, you just have to register.