Help with grid movement

Hi this is my first post in the forums I am using construct classic "cant afford construct 2".

my question is about the grid movement.

What I want is to have an event activate the sprites grid movement make it move 3 grid spaces vertical then shut it off.

here is the event

procedure is just a private variable im using to determine what the boss does.

What I thought would happen is if grid movement is activated it would move 3 grid spaces and deactivate it but apparently it just jumps straight to being deactivated.

How would I go about doing what I want?

I don't know if the image is working

the event says if the sprites grid movement gets activated

sprite move 3 vertical

deactivate grid movement behavior.

No image showing up here, can you upload it to dropbox and just post a link to it here (and replace the ".com" with "(dot) com" to avoid the link being blocked)