Ah yes, the wonderful Hurco.... It depends on the machine type. Older ones are strictly point machining, meaning you put in points for lines and arcs, and thats where it cuts. B series and earlier are a little quirky in programming.
BMC 30's,40's and later are equipped with the 2 screen controllers, or Ultimax's, and I think the Ultimax II's accept Gcode also. Call MartinCNC in Florida for answers.
Good rigid cutting machines, just not that fast....