I got it

Bonus Features
• Adjust EFILive™ Tuned PCMS on-the-fly
On 2001-2005 LB7 and LLY Duramax engines you can now change the power levels on-the-fly created by your EFILive™ custom tuning software with your Edge Insight CTS! Simply use your EFILive™ software to change your DSP5 Switch Type from “hard wire” to “serial”. Once you are set up to support “serial” communication, simply use the up and down arrow buttons on your Insight to adjust EFILive™ tunes on-the-fly.