Hi, Mills
Is your Gcode numbered N5, N10, N15..................N5000, 1000 lines of code.
In your Post processor like LazyCam you can set the line, N- Numbers to increment to most any value by 1, 5, 10, to keep order and allow
you to add code in order, lots of systems ignore the N - numbers and run line to next line.
Hope this Helps, Chip