Simple Link 1D
This iExpression links a 1D property to another 1D, 2D, or 3D property. If you link the 1D property to a 2D or 3D property you can (as in any other link) choose in the options of "Link to" among other things whether you want to link to the x, y, or z component.
Link to
Don't put a number here. Use the link button to link this to some property.
Download at aescripts.com
Tip
Create Your Own Little Fuzzy Friends from Aetuts+
tip
In this tutorial the Simple Link 1D iExpression is used to move the hair of a cute little creature according to the moves of the creature. This iExpression is used around 12:50, the entire iExpressions-based