Loop through event correctly

Hi I created my variable set to True. I want to be able to loop through this event until the player reaches another location and then I set variable to false ending the loop.

How do I create this correctly?

Thank you

You can put a sprite with opacity = 0 at your destination.

(example: the object at destination is Dest_B)

And this is the loop :

If isMoving = true : Sprite move from A to B

--(Sub-event)--When collision with Dest_B : Set isMoving = false

Is this what your need?