Control start/end point of punch-in region with knob

You are recording audio on you MPC with the punch in feature. To access it you hit the button on the top while in audio edit. Here you can enter the punch-in/punch-out points. Once you do it enough times, you realize it's a little tedious. You ask, "Can I control the start and end points of the punch-in region with the q-links"? I haven't been able to find such a shortcut yet. Am I missing something?

I held down the q-link button in hopes there would be two predefined knobs that would do this for me. No luck.