I played with this tool once to practice animation so I think you need the tile animation editor to stop the animation of certain tiles. Here's a link
http://www.pokecommunity.com/showthread.php?t=305186
I'm not for certain if this stops the animation though.
__________________
Pokemon Cosmic: A New Threat
For God so loved the world, that he gave his only begotten Son, that who ever believe in him should not perish, but have everlasting life. - John 3:16
I believe in Jesus Christ my Savior. If you do too, and aren't scared to admit it, then copy and paste this in your signature.[/sig-reason]