How to go to DCC mode from my jog box, without going to my keyboard or mouse?

How to go to DCC mode from my jog box, without going to my keyboard or mouse?

Hi,

I have an LK jog box (old style as per my understanding) but, doesn't matter which key I use, I have not been able to find the right one to go to "DCC Mode Please!" when, at the beginning of any program, I have to mandatory go to my mouse.

Any suggestions on this regard?

Thanks in advance for your help