Trouble with LinuxCNC and Gantry stepper motor setup.

Trouble with LinuxCNC and Gantry stepper motor setup. I have search for a long time to find anyone who knows anything about how to set up LinuxCNC to run the Y and A stepper motors in tandem, or jointly.
There seems to be many people who have done this but have very vague explanations on exactly how to do it.
I have come so far setting up this CNC router table only to come to a dead stop.

If there is anyone who actually knows how and would kindly lead me through it, I will be glade to give the needed info on what I have for there wise input. Also be very thankful too.

I would really like to do some routing on the table.

What hardware do you have?

At least for Mesa hardware and parallel ports, the GUI configurators
(pncconf  amd MesaCT for Mesa and stepconf for parallel ports)
know how to setup tandem axis for gantry machines.