Prolost Spanner 2D
Apply this preset to a 2D layer. Choose a From Layer and a To Layer, and the layer will automatically be positioned, rotated, and optionally scaled to span between them.
From Layer
Choose any 2D layer in the composition other than the Spanner layer or the To Layer. It's OK if this layer is parented under others.
To Layer
Choose any 2D layer in the composition other than the Spanner layer or the From Layer. It's OK if this layer is parented under others.
Span
Sets the orientation of the aiming. Chose Left to Right and the layer's right edge will aim at the To Layer. Chose Top to Bottom and the layer's bottom edge will aim at the To Layer.
Scale to Fit
Toggle this on and the layer will scale automatically to fit between the To Layer and the From Layer. Works best if you also check Automatic Pivot Point.
Scale Both Axes
If Scale to Fit is on, this setting determines if both X and Y axis are scaled, or just the one that corersponds with the Span setting.
Placement
Set this to Pinned to From and the position of the layer will match the From Layer. Set it to Centered, and the layer will be positioned in between the To Layer and the From Layer.
Automatic Pivot Point
Turn this on and the Anchor Point of the layer will be adjusted automatically. Leave it off to use the layer's Anchor Point settings.
Transform
In this group, you have controls for adding a transform offset to the layer. You can adjust Position Offset (X and Y), Scale Offset, and Rotation Offset.