From a applicable generalized 1/4 Tag or applicable T-Bone 1/4 Box.
Centers Arm Turn the first fraction;
Very Centers Arm Turn the second fraction as End of Center
Step Forward as Outsides adjust (usually a 1/2 Reverse Swap Around or 1/2 Swap Around as necessary)
to form a Star;
Star the third fraction;
Very Centers Arm Turn the fourth fraction as dancer following them Veer Out
(to become End of Center) as others adjust to form a Couple.