I know this is an old topic, but I am having the most frustrating time editing my cgode.
First of all, im using cura 3.6 and my Machine option setting isnt even listed as an option.
I have tried multiple text editing documents but there seems to be no way to export the edited files as gcode for my printer.
I have to remove the G1 Z15.0 F3000 ;move the platform down 15mm as it is making my first layer print in the air
Please help, someone, there is nothing on the internet about exporting gcode with these programs, or editing raw gcode in cura.