I was able to gain more apps in my Samsung store my changing the build prop on my phone. I currently have an ATT Note 3 (rooted via Towelroot) and I changed the build prop from this:
I did not change anything else, and I have approx 20 apps just in the Entertainment section alone. Multiwatch is there, along with a bunch more.
**Disclaimer, I am not responsible if you jack anything up messing with your build prop info**