The Template Editor Label column serves two functions. It can be used as a label for the Go To columns and it can also be used as a label to control any modifications to the point the labelled row would create in the Template Implementation Set.
Labels are case sensitive and can be any length. Labels can be repeated but if they are referred to by the Go To columns the template will search for the first occurrence below the row containing the go to reference. When a Go To refers to a label it will always look at the rows following, it will never search above the current row. If labels are repeated and used by the template implementation set modifications, the same modification will be applied to all points duly labelled.