If you got to the “Model” tab at the top of studio, on the far right there’s a section labeled “Advanced”. Click the “Service” button there and it should allow you to insert the “Teams” service which should allow you to add teams to your game
To add to what @EndorsedModel said, here’s a visual:
Open up the “Advanced Objects” window by clicking it in the Model tab & search “Team”
https://i.gyazo.com/9dc37d741b37693c8956886baaba15a2.mp4
Drag it towards the workspace, and the “Team Folder” will appear. Select the “Team Folder” and then double click “Team” from the Advanced Objects tab to insert it into the Team Folder.
https://i.gyazo.com/ccb738fa190dbf7191c0c35960dc903f.mp4
Another way of inserting the Teams service is by running this in the command bar:
game:GetService("Teams")
Shows the Teams service in the explorer if it’s not already there. I always do this when I need teams rather than the insert method. Saves me a couple of seconds and I have the motions just engraved into my memory.
It is now under “Service” tab if anyone is wondering now