Homing- Dual Gantry

Actually, further down the page this is said

Dual Gantry Operation (Not Yet)
Dual gantry operation differs somewhat from single gantry homing as specified above. Dual gantry operation assumes each of the two motors in the gantry has its own limit switch that can be read independently. It also assumes that the axis is not racked so much that it cannot move. If this is the case the machine must be manually squared so that the axis can move before starting the homing operation.   

The homing sequence progresses normally through each axis but executes the following if a dual gantry axis is detected. Detection is performed by looking at the motor mapping configs: $1MA – $4MA 
The standard pre-conditions apply
Dual gantry homing begins by testing the homing switches for the dual axis. if either switch is tripped the other motor is advanced at the latch rate until that switch is also hit. “Advance” is actually the negative of the homing-travel for that axis (i.e. movement will be in the opposite direction specified by the latch rate sign). Once the second switch is hit a backoff is executed to the machine zero offset value.
A search move is initated for both motors. The search ends when one of the switches is hit.
The second switch is closed as per above, and a backoff is executed.
A latch operation similar to the single gantry case is performed.
The dual axis is now homed. Control is returned to the standard homing operation, above

So until that is finalized, an option to set limits only on an axis would be nice.

I guess I was confused on how the limits are set up.  If I set up a Min Y/ Max Y, will it stop both Y motor from running when hit?  Or do I need to use Min A/Max A as well, because the second Y is set up on the A axis?

You can set up the switches to either be off, homing, or homing + limits, if I need to use axis 4’s limit capability but not its homing because dual gantry homing isn’t finished, I’d like to set it up to just use limits on that axis.

Kind of get what I’m asking?  I’m probably confusing function, I don’t know how you have it set up internally.  It might already do what it is supposed to do and not need any of this.

Yeah, I was confused, I thought the A Switches were for output 4, that’s what I was getting at here.  So the switches are independent of their output and only coincide with their axis.  As long as it stops both motors, I’m cool with it, thanks!