Motion Engine is an After Effects plugin (script) that applies precomposed transitions in just one click of a button.
What's outstanding about ME is, the ability to insert transitions that are composed of multiple layers and shows both videos (A and B) at the same time while keeping the time shift and video synchronization intact.
Circles (12 Transitions)
Double (8 Transitions)
Quadriple (2 Transitions)
Simple (8 Transitions)
Triple (12 Transitions)
Close (4 Transitions)
Lines (4 Transitions)
Long Strips (6 Transitions)
Radial Wave (8 Transitions)
Rectangles (3 Transitions)
2 Slices (8 Transitions)
3 Slices (2 Transitions)
Strips (2 Transitions)
Venetian (4 Transitions)
Close (4 Transitions)
Lines (4 Transitions)
Portions (4 Transitions)
Radial (2 Transitions)
Rotate (2 Transitions)
2 Slices (4 Transitions)
3 Slices (4 Transitions)
Strips (2 Transitions)
Venetian (6 Transitions)
3 Lines (4 Transitions)
3 Lines Rounded (4 Transitions)
4 Lines (4 Transitions)
5 Lines (4 Transitions)
5 Lines Rounded (4 Transitions)
6 Lines (4 Transitions)
Radial Wave Burst (2 Transitions)
Radial Wave Burst (11 Transitions)