From a non-T-Bone 2 x 2.
Lead Couples (if any) Single Wheel as Trailing Couples (if any) do 1/2 of a
  Half Sashay as Mini-Wave dancers (if any) do an 'adjusting' Leads Fold;
  all do the anything call.  Typically the anything call
  is done from the resulting 1 x 4.
| |   |  |   |  | before Vertical
 |  | after 
 | 
 | |   |  |   |  | before Vertical
 |  | after 
 | 
 | 
Notes:
- 
From a Mini-Wave, Vertical is an 'adjusting' Leads Fold. I.e.,
    Leaders 1/2 Box Circulate and Roll as Trailers 1/2 Dodge.
- 
From an Out-Facing Couple, Vertical is a Single Wheel.
- 
From an In-Facing Couple, Vertical is 1/2 of a Half Sashay
    (Belle goes in front of Beau).
Single Shuffle [C4] (Willard Orlich):
 From a Couple. 
  1/2 of a Half Sashay.  
  I.e., the Beau sidesteps behind the Belle as the Belle sidesteps in
  front of the Beau.  
  Ends in Tandem dancers.
 See also Vertical (fraction) Tag (The Line) [C1].