Okay thanks for the update and the info.  Getting ready to try this Macro B Programming out on a little setup.

I've run into a problem.

I'm trying to link the DRO to a #VAR.  On the hobby version I can change the DRO's "Parameter" and it updates the #VAR. 

In the industrial version I change the same settings and it does not change the #VAR. 

I've been starting at #500 on the Hobby version.  On the industrial I've tried several ranges and no luck. 

Same build number for both Hobby and Industrial? 

Yes.  3481.  Downloaded it about an hour ago. 11-21-17

Should work the same then.  There really is no different in the GUI between Hobby and Industrial other than industrial features are turned on in the Demo mode. 

Here is something weird.  I can manually change the numbers in the Reg File and it updates the DRO, but not the other way around.  In the industrial version.

I went back and double checked that the hobby version #VARS were updating with the DRO, as expected. 

I jump into the Industrial version and it is not working correctly.  I again tried several ranges of #VARS with no change.  But again, I could changed the #VAR in the Reg Diagnostics and it would update the corresponding DRO.

For a bit of good news.  I got the Loops working in Macro B like I need them to.  I can post the code when I get more accomplished.

In this snippet of code; the first Rough Grind operates as expected.  But then the Rough Finish Grind will sometimes not continue to the next operation.  It stops on the M98 line.

(Rough Grind)
WHILE [#5042 GE [#100 + [#101 + .001]]] DO 1
G90 G01 X 0.0 F #105 (Traverse Start to End)
G91 G01 Y -[#101] F #104
G90 G01 X 0.5 F #106 (Traverse End to Start)
M98 1
END 1

(Rough Finish Grind)
WHILE [#5042 GE [#100 + [#102 + .0005]]] DO 2
G90 G01 X 0.0 F #105 (Traverse Start to End)
G91 G01 Y -[#102] F #104
G90 G01 X 0.5 F #106 (Traverse End to Start)
M98 2
END 2

Any ideas why it is doing this?

Remove the M98s.  END 1 and END 2 should be sufficient. 

M98 will return you to the specified N label (which you don't have).  Unexpected results should be expected. 

N1 WHILE [#5042 GE [#100 + [#101 + .001]]] DO1
G90 G01 X 0.0 F #105 (Traverse Start to End)
G91 G01 Y -[#101] F #104
G90 G01 X 0.5 F #106 (Traverse End to Start)
END1

(Rough Finish Grind)
N2WHILE [#5042 GE [#100 + [#102 + .0005]]] DO2
G90 G01 X 0.0 F #105 (Traverse Start to End)
G91 G01 Y -[#102] F #104
G90 G01 X 0.5 F #106 (Traverse End to Start)
END2

Steve

Technically, the numbers for the DO and END is all you need. 

WHILE [condition] DOx
...
ENDx

Where x is a unique number.