BEFORE PROCEEDING, PLEASE ENABLE 3RD PARTY INTEGRATIONS INSIDE OF LIGHTSTREAM LABS. MORE INFO AVAILABLE IN THIS ARTICLE.
To add your StreamJar overlay, first visit the StreamJar website to copy the URL of the overlay you wish to add.
Once you have this copied, return to your Lightstream project, click the “Add Layer” button, and then click on "Alerts". Afterwards, you'll want to select StreamJar and then paste the URL you copied earlier in for your layer.