From parallel lines with ends facing in:

Rims 1/4 Thru: Ends and adjacent centers Cast In 1/4 (Bend the line or single Hinge); new centers Trade.

Rims 3/4 Thru: Ends and adjacent centers Cast In 3/4; new centers Trade.

Rims Chain Across: All Cast In 1/4; new centers Trade; ends Face Out (if necessary) and Courtesy Turn or Left Courtesty Turn centers to form facing lines. Rims become centers.

Rims Scoot Chain Thru: Rims Extend, Swing Thru, Turn Thru; clockwise centers (beau if infacing, belles if outfacing) will Dodge.

Rims Chain Thru: Rims Extend; Very Centers Trade and Cast Off 3/4 with wave ends; centers Run (Switch) and Roll to become ends of 3 x 1 lines.