Multi Clause is useful when you only want to run one clause in a group of clauses. Multiclause stops running when any one of the subclauses is True. It runs subclauses from top to bottom.
Example
An ideal use case for this would be if you want to only award a score of 5 if the client has an average hourly rate of > 40, or award 3 points if the average hourly rate of the client is > 30, or penalize a job with -2 if the average hourly rate is < 10. In this, you’ll create 3 sub-clauses to achieve this.