On the A2100 you can use a mouse in place of the touch screen. If you don't have the plug on the right side of the control screen.The control comes standard with a mouse port on the top of the control silver box in the mag panel. All you need to do is get a long mouse extension cord and bring it to the front of the control. The KTI boards go out often and most customers switch to a mouse.

Mike cncmachineservices (dot) com