Geeetech

G1 X76.139 Y101.768 E2031.57528
;LAYER:6
;TYPE:CUSTOM
M83
M107 ;fan off
M117 Filament Change ;LCD "Filament Change"
G1 E-1.000000 F6000
G1 Z15.000000 F300
G1 X150.000000 Y0.000000 F9000
M84 E0
M0
G1 X25 F9000
G28 X Y
G1 E1.000000 F6000
G1 E-1.000000 F6000
G1 X76.139000 Y101.768000 Z1.100000 F9000
G1 E1.000000 F6000
G1 F9000

This code was put in by Cura for me once.

How to change colors of filament mid print. Insert the following code at the spot that you want to change color / filament.

;TYPE:CUSTOM
M106 S255 ;pwm ON 100%
M117 Filament Change ;LCD "Filament Change"
M83
;M107 ;fan off
G1 E-1.000000 F6000
G1 Z15.000000 F300
G1 X150.000000 Y0.000000 F9000
M84 E0
M0
G1 X25 F9000
G28
;X Y
M109 S205.000000
G1 E1.000000 F6000
G1 E-1.000000 F6000
G1 F9000
M82
M117 RESUME PRINT ;LCD screen

This moves the nozzle to a dump spot and pauses waiting for a button press while you change filament. It then goes to 0,0,0 and heats the nozzle to spec if necessary. It uses the (M106 S255) PWM 100% signal for an alarm when time to change filament.

Thanks for the sharing!