Need to get rid of a Preview you’re not using anymore? Each Preview in your Tugboat project counts toward the total storage size for Tugboat billing, so it’s a good idea to get rid of Previews you don’t need.
Go to username -> My Projects at the upper-right of the Tugboat screen.
Select the project where you want to delete a Preview.
Click into the repo where you want to delete a Preview.
Select the Preview you want to delete.
Click the Actions drop-down menu for that Preview, and select Delete .
Press the Yes button to confirm.