Phil's tutorial is invaluable knowledge for an animator. For the sake of completeness I'd like to point out another method I sometimes use to adjust the hight of a character to which a a walk cycle has been applied. As you know, applying a walk cycle drops the character to the ground. After applying the walk cycle load a poser square prop, set 'Visible' off in the props 'Properties', set the 'Set Figure Parent' to be the square. In frame one, adjust the yTran of the square so that the character is at the desired hight. The character will maintain this hight throughout the animation. If desired you can vary the hight of the square throughout the animation (probably best to use linear interpolation for the square if doing this). You are not limited to yTran, you can set x or z tran, or you can yRotate the square so that the character walks off in a diffrent direction, you can even rotate the square so that the character walks on a wall or ceiling. Note that if you apply a new walk cycle the character will drop to the floor again.