This tutorial explains "Shape Widget Wizard". The explanation assumes that you finished the tutorial "Shape Key & IPO Driver".
This script is located on the "Animation" category of the Scripts menu.

Prepare an object which has already been assigned a shape key. (if you don't know setting shape key, see Blender tutorial "Shape Key & IPO Driver", step 1 to step 6.)
Select the object and select "Animation" -> "Shape Widget Wizard" in the script menu of the script window. After that, the script window changes as next image.

(1) Press "Next" button.

(2) Select "Key 1" in the pull-down menu. And press "Finish" button.

New IPO Driver will be displayed at the 3D cursor location in the 3D window. IPO Driver is rhomboid at the center. You ca control shape key by the driver.

There are several patterns of the IPO driver in the pull-down menu (See Step 2). It allow you to control several keys at one time.

