How do I make an image change its size in the game

How do I make an image change its size in the game from all sides.

for example when my progress bar is maximum a sprite is spawned ( instead you could say a ring is formed ) and grows and kills all the monsters. will someone please tell me how to do that. I could send an image if someone told me how to!

Put all of your Monsters into a family called "Family_Enemies".

Give the ring an instance variable called "Scale"(number) give it the value of the starting size of scale you want it to be when spawned.

and another instance variable called "Grow"(Boolean) set the value to true

Create a condition:

Ring > Is OnScreen > System >Set Scale > Ring.Scale

Create another dual condition:

Ring > On Created > Ring Add .02 to Ring.Scale

Ring > Grow(is true)

__(Sub Event) Ring.Scale =(or greater to) 5.0> Ring > Set Grow to False

______________Ring.Scale > Ring.Scale to 5.0 or (Destroy) or (Fade)

Create another condition:

Ring > On Overlap > Family_Enemies> Destroy Family_Enemies