Welcome to the Asana Community Forum @Jordan_Rowland !
I am not aware that this exists. As far as I know a task can only be added to one section within a project. You cannot add it to more sections within the same project.
Now if you have subtasks and you add them to the project as well then you can add a subtask to another section.
And you can add a task to various projects.
Here is a product feedback request that seems to be about what you are looking for.