Hi Eddy, Sorry about delay, I had to go to Waitrose.. (ok, Lidl's.. I'm not made of money..) and have taken your advice on the DIP switches.
I have just started running the RRunner gcode and the X axis seems to be doing fine following the DRO..
The Y axis is dead, I shall see if I can acquire a different PP Cable to see if that is the problem.
The Z axis looks fine as well. Small movements that relate to DRO.

(At this stage I have no idea how the Shaft rotation marries up with distance moved but I am sure that will become apparent.)

When I start the RR the 4th motor does the Vibration jig which is worrying as there is no DRO movement.
When I hit RESET to halt the program everything goes quiet and stops.. No continuing vibration from any Motor..
When I try to restart the program all (not Y) start a whining noise.. prior to the program continuing.. Is that normal?

As much as I am unfamiliar with Stepper motors, the heat that seems to be being generated even when not running the GCode seems excessive.. Too hot to touch after a few minutes..
I am used to regular Machine motors and, as you say, will generate heat during a work period.

I assume I could use Channel 4 instead of Y with a bit of re-routing..?

One final question.. On the set-up (Foxtech you linked..) it shows specific Numbers in specific boxes when setting up the Ports and Pins Motor Output, Input Signals and Output signals.. I have taken these on screen No.s as the Correct No.s to insert as I have no other list of No.s to refer to.. (Unless I get something useful back from Longs..)

The Tutorial Videos on Artsoft just say 'Refer to Figures supplied by machine builder..' Not very helpful..
Again, I appreciate any assistance..