thanks very much

@dc42 I am wondering whether you received my first board and whether you need a AOZ1284 as I have one in my possession

Thanks!!

DWC Field?? (I struggle with acronyms)
Is that the field in the UI where you can send a G code?

Yes I am sure I will, Thank you so much for all your help. I have decided that I will do my own macro from scratch rather than take the quickie (not!) route by shoe horning someone else's code into the mix.
Thanks so much !

@JoergS5 Sorry if I sound frustrated, but I have been doing 3d printers for many years, built a few and got lots of experience with Marlin and smoothie. This is my first experience with CNC and Reprap coding and it is doing my head in. Apologies all round.

I guess I just need to mark solved and go away and weep with frustration. I know the answers are there somewhere if you know what question to ask. All I wanted to know was what E0 L0 and S1 refer to in that command. I think I can work out the others.

OK thanks got it
Could you tell me what the parameters in this command refer to:
M585 Z50 E2 L0 F500 S1

According to the wiki
Parameter must be only one of
Xnnn
Y-nnn
Znnn

Looks like I have it, I need to add the HI to any G1 command that is looking for an end stop command to make it trigger.
Like G1 H1 X50

Is that right?

Thanks, slowly getting there. Guess I need to understand the G codes and it is a steep learning curve.