Follow these step by step instructions in order to track a Set to your Metamask account:
1. Open Metamask
2. Click the ≡ icon on the top left
3. Scroll all the way down
4. Click "Add Token"
5. Click "Custom Token"
6. Add your Set's address. You can find this in the about section of your Set's page where you can copy the address.
7. Paste the address in the address field
8. The other fields should populate.
9. Click "Next"
10. Click "Add token"
11. You should now have the token tracked in your Metamask account.