(Anything) and Spread

In addition to the three ways Spread is used at Plus, there is a fourth way:

If specific dancers are directed to Spread (e.g., Everyone Trade, Boys Spread), they slide away from the adjacent dancer one position. The inactive dancers do not move. This can be used to create an Hourglass (From #0 Lines: Touch 1/4, Column Circulate 1 1/2, Center 6 Trade, Girls Spread), Blocks (From #0 Lines: Touch 1/4, Boys Spread, Check Blocks), or other formations.