Changing stepper motor shields

I have been trying to change my Easy Driver shield for a stepper motor to a Dual stepper motor driver shield #RB-ITE-53 in one of my sketches. I must be missing something because I can’t get the dual shield to work. In the sketch I am using the AccelStepper.h library. With the Easy Driver the output from the Arduino uses pin # 8,9, to the driver. When I plug the dual shield into the Arduino What do I need to change in the sketch. I know all my inputs from switches and sensors stays the same but what pin numbers drive the motor? I am doing this to have better control of the “microstep” feature. Thanks for your help.

You can find all the details needed in the example, schematic and datasheet found in the documentation from the manufacturer.

We strongly recommend that you read the documentation and understand it well before going further with your project, to prevent any issue or damage to the components.

Here is an example of the pins used by default with this shield:

Sincerely,