Hi Mike,
I couldn't duplicate the KFLOPWebNC Feedhold issue, but it looks like you removed that question so I assume it no longer is a problem. I would love to see your app.
Regarding KMotionCNC Subroutines: unfortunately calls to other files are not supported. The subroutine must be within the same file. Here is the included SubroutineWithConditionals.ngc example which shows how to call a subroutine conditionally and multiple times.
RegardsCode:G20 #100 = 5 (examples of logical operations) (result is 1 if condition is true) (result is 0 if condition is false) #101 = [#100 > 5] #102 = [#100 >= 5] #103 = [#100 < 5] #104 = [#100 <= 5] #105 = [#100 = 5] #106 = [#100 <> 5] (subroutine call can be looped a number of times) (the L or Q word may be used to specify the count) (if neither L or Q is specified a count of 1 is used) (if the count is 0 the subroutine will not be called at all) M98 P1 L3 (example using L to specify the loop count) M98 P1 Q3 (example using Q to specify the loop count) M98 P1 L#100 (example using a variable loop count) M98 P1 L[5 > 4] (example using a conditional as a loop count) M2 O1 #200 = [#200+1] M99