 Transparency Tool - Transparency Level 
 Slider
Transparency Tool - Transparency Level 
 Slider

You can alter the transparency level of the selected transparency handle (described on the left) by dragging the slider. As you move the slider, the transparency level of the handle changes interactively.
Tip
 These 
 controls are only displayed on the Transparency Tool Infobar 
 for some types of transparency.
 These 
 controls are only displayed on the Transparency Tool Infobar 
 for some types of transparency.