There are times when you want to make changes, based on a specific image. For example, you create an action to balance the contrast in an image, and one of the commands you use is the Levels adjustment. Although all of the other commands do not need modification, the Levels adjustment is specific to each individual image. What you want is the action to perform (automatically) all of the action steps, except Levels. For the Levels adjustment, you want the action to stop, and let you make changes, and then after you click the OK button, to move on and complete the rest of the steps.
Actions palette.
expand triangle of the action you want to modify.
Actions Options button, and then click
Insert Stop .
Allow Continue check box to add a Continue button to the stop alert box.
OK .
Play button on the Actions palette to run the action.