The Single Step command (accessed by choosing File > Script > Single Step) provides a way to sequentially step through a script's actions, allowing you to selectively apply actions to the current image.
Single Step can be thought of as a mode or a toggle: once you choose this menu item, scripts you run will be put through the Single Step "filter" until you toggle off the mode by choosing the menu item again.
Note: When using this feature, it's helpful to have the Script toolbar displayed. To do so, choose View > Toolbars > Script.
To use this command:
Choose File > Script > Single Step. This puts Paint Shop Pro in Script Single Step mode. Note that the Step Script dialog will not appear until you choose to run a script.
Run the desired script.
The Step Script dialog appears, listing the script's name and first action. Use the dialog's buttons as follows:
Click Continue to apply the command to the image and move on to the next command in the script.
Click Skip Command to not apply this particular command to the image, and instead move on to the next command in the script.
Click Stop Scripts to cancel this operation and close the Step Script dialog. Note, however, that Paint Shop Pro remains in Script Single Step mode until you toggle off this command.
To turn off Single Step mode, choose File > Script > Single Step again.