I need help with the dust!

In my game I have a problem with the dust. So while my player is walking I want this sprite which I have named dust to spawn behind it, and play it's animation. I also want it to spawn every 0.3 seconds as the player moves. The problem I don't know how to get this to work...

Thank you for your time.

What exactly is the problem? You can try something like this:

Every 0.3s
Player Is Moving 
... Player Spawn Dust at imagepoint "feet"