From parallel waves: Spin the Top; very centers slide nose-to-nose [like a Slither] and Hinge; Center 4 Diamond Circulate as outsides Trade; centers on each side Cast 3/4 as other 4 move up [1/2 Circulate] to form parallel waves.

Fan Over Action: As above except that initial action is Fan the Top. This can also be done from parallel 2-faced lines.

Lock Over Action: As above except that initial action is a Lock It.

Hinge Over Action: As above except that it starts with a Hinge from columns or generalized lines.