Using a keyboard for continuous movement
While using Simulation, Step Thru Toolpath, and Edit Toolpath functions, you can use the ‘Enter’ key rather than your mouse buttons. Simply click a command animation button once with your mouse, and then press the ‘Enter’ key. Alternatively, you can hold down the ‘Enter’ key for repeated animation.
Examples:
Simulation: If you click the Run button and press Enter, the simulation will pause. Press Enter again, and the simulation resumes.

Step Thru Toolpath: If you click the Single Step button and press Enter, the tool in the graphic area moves forward a single record. If you hold down the Enter key, the movement is continuous.

Edit Toolpath: If you click the Single Step button and press Enter, the pointer moves forward one CL record.