Well Im not the best with textedit.

I would do this if it where mine.

*Script bang !EnableTray
*Script exec !varset tray_on "1"
*Script exec !varsaveall replace
*Script exec !recycle
*Script ~bang

*Script bang !DisableTray
*Script exec !varset tray_on "0"
*Script exec !varsaveall replace
*Script exec !recycle
*Script ~bang