Select Creality -> Ender 3 as your device and make the following changes
Start GCODE
; Ender 3 Custom Start G-code M501 ; load EEPROM settings G92 E0 ; Reset Extruder G28 ; Home all axes G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed G1 X0.1 Y20 Z0.3 F5000.0 ; Move to start position G1 X0.1 Y100.0 Z0.3 F1500.0 E15 ; Draw the first line G1 X0.2 Y100.0 Z0.3 F5000.0 ; Move to side a little G1 X0.2 Y20 Z0.3 F1500.0 E30 ; Draw the second line G92 E0 ; Reset Extruder ; M501 ; Restore settings from EEPROM ; M420 S1 ; Load bed leveling data if you have BL touch; use G29 if you would ; rather level G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed G1 X5 Y20 Z0.3 F5000.0 ; Move over to prevent blob squish
Stop GCODE
; KP3S changes were Y150 (don't move up as much as Ender) G91 ;Relative positioning G1 E-2 F2700 ;Retract a bit G1 E-2 Z0.2 F2400 ;Retract and raise Z G1 X5 Y5 F3000 ;Wipe out G1 Z10 ;Raise Z more G90 ;Absolute positionning G1 X0 Y170 ;Present print M106 S0 ;Turn-off fan M104 S0 ;Turn-off hotend M140 S0 ;Turn-off bed M84 X Y E ;Disable all steppers but Z