I would just use G91 for an increment move. I'll post a screen shot soon with the screen set. I kinda want to have only one DRO input with the option for:
a. Work Coordinates      Default movement from user's G54 offset
b. Machine Coordinates  G53
c. Absolute jog              G90
d. Increment jog           G91
e. Axis selection             X, Y, Z, A

or just 3 basic DRO inputs for X, Y, Z axes....idk

Louie,

I tried to implement your DRO box this evening. I think I am doing everything right but the machine is not moving. I have attached screen shots of the DRO setup and the code. I am very new to Lua so I am not sure if I am inadvertently doing something wrong.

it`s name needs to be the same as the scr.GetProperty

Here is the screenshot and the screen set with the embedded code. Add, modify, delete, PLAY
Still working through G53 incremental commands. Mach4 doesn't allow G00 G91 G53 move. "Cannot execute G53 incremental". I'll figure a way.
All moves are G00. If you want a G01 option, just let me know.

--josh

to find what G is working  type it in to the MDI

Yea Success!!!!!

I now can send X or Y flying all over the place. Thanks Louie

One other question -- what does the Hidden box do? I tried to make a home button and place it over the LED on the main screen. That way the axis would home when you clicked on the red LED. I thought it would be easy as placing a button over the LED, hiding the button and then demoting the LED to level 1 to place it behind the LED. It did not work. I resorted to a small button on the top.

just delete the LED and replace it with a toggle button. Toggle buttons have a lot of features that you may want.

you can set toggle buttons to do stuff on up and down click, change color, different wording, flash they are quite fun to play with you could have I am not homed, then have I am homed anything really.
but you wont to keep it as simple as possible if there is a function built in to the button or what ever use that save`s have to use code.

just delete the LED and replace it with a toggle button. Toggle buttons have a lot of features that you may want.

Louie - I tried this but the toggle button did not know when the other toggle button was depressed. Remember I was trying to do this to change between continuous and incremental steps on the Jog. If the machine was on continuous and I pressed incremental the other button did not know what was happening and would continue to appear like it was on. Perhaps it is best to look at what I was trying to do (see attached).

I am remedial and need REALLY big buttons to do common tasks or emergency tasks (like stop the machine).

the easiest way is to set the button state to 0 "of the opposite button" when the selected toggle button is pressed by using scr.SetProperty calls.

examples are in the screenset code I posted. -> click on the MdiDro, On Modify Script.