Once you activate your PoKeys Plugin for Mach4, you will need to go in and configure it for the KBD48CNC keyboard. In the Configuration Panel, select the Matrix Keyboard tab where you "Enable Matrix Keyboard Support" I defined 6 Rows and 8 Columns for the 48 buttons of my keyboard. I then assigned a pin to each one and just went down the line, so Pins 1 thru 6 for each row, then Pins 7 thru 14, one for each Column. I then pushed the Apply button to save it. I then selected the Pendant Tab at the top of the window and enabled Pendant mode, and selected the KDB48CNC check box. where I Enabled each button that was present on my keyboard which is most of them. There are no MPGs, so I didn't activate any of them. After Enabling all the buttons, I pushed the Apply button, and exited the Configuration panel and restarted Mach4. Once you are done, you should see the PoKeys Mapping with all 14 pins you defined. The keyboard lit up once Mach4 came active.