<ATC> Eroo

This is a general tagging ending, subject to all the usual revert/reflect stuff.

Tag to the 3/4 position. Ends Quarter to Handhold (typically right) and circulate one position while the centers cast off 3/4.

Sometimes "Eroo" is called by itself when in diamonds. Ends circulate while the centers cast off 3/4.

"Switcheroo" -- Switch to a Diamond, Eroo.