Star that includes vectoring?

How would I go about doing a star that says "Expect vector to final approach course". If I keep "No Vectors To Approach" off then it gives me vectors way to early according to the STAR chart and if I turn it on it does not give me vectors at all. One example of a STAR that does this is the "ANNEY THREE" at KMIA. It says "Expect radar vectors to final approach course after KAINS". In VOXATC it will try to start vectoring me way before KAINS. How do I make it so it does not start vectoring me until after I reach the end waypoint? Thanks