Changing s-prepare in M3D Crane Quad Fusion

Hello all,
i want to change the userinterface of my M3D Quad Fusion Printer (using an Duet 2 Maestro) because i dont like it right now.
I already changed the main menu in editor without a problem, well i cant use the Ü and ß which i would like to use but this is not the most important. i would like to change the s-prepare file from:

; Created by PrintM3D
; for the Crane Series
; This menu is displayed when the printer is idle; for the menu active while
; printing, see "s_tune"
;
button R3 C5 F0 T"Back to Main" A"return"
button R15 C5 F0 T"Home All" A"G28"
button R27 C5 F0 T"Load/Unload Filament »" A"menu x_fload" L"x_fload"
button R39 C5 F0 T"Move Axis »" A"menu x_move" L"x_move"
button R51 C5 F0 T"Home Other »" A"menu x_homing" L"x_homing"
; button R63 C5 F0 T"Unload Filament »" A"menu x_funload" L"x_funload"
button R63 C5 F0 T"Disable Steppers" A"M18"
button R75 C5 F0 T"Motor Tests »" A"menu x_motortest" L"x_motortest"
button R87 C5 F0 T"Cooldown »" A"menu x_cooldown" L"x_cooldown"
button R99 C5 F0 T"Bed Leveling" A"menu s_bed_leveling" L"s_bed_leveling"
button R111 C5 F0 T"Print" A"menu s_sdprint" L"s_sdprint"
button R123 C5 F0 T"PrepABSR" A"M98 P#0" L"/macros/set-absr-temp"

to:
; Created by PrintM3D
; for the Crane Series
; This menu is displayed when the printer is idle; for the menu active while
; printing, see "s_tune"
;
button R3 C3 F1 T"Zuruck" A"return"
button R15 C5 F0 T"Vorheizen" A"M98 P#0" L"/macros/set-absr-temp"
button R27 C5 F0 T"Drucken" A"menu s_sdprint" L"s_sdprint"
button R39 C5 F0 T"Home" A"G28"
button R51 C5 F0 T"Filament" A"menu x_fload" L"x_fload"
button R63 C5 F0 T"Bewegen" A"menu x_move" L"x_move"
button R75 C5 F0 T"Stepper Aus" A"M18"
button R87 C5 F0 T"Bett Leveling" A"menu s_bed_leveling" L"s_bed_leveling"
button R99 C5 F0 T"Abkuhlen" A"menu x_cooldown" L"x_cooldown"
button R111 C5 F0 T"Home Other" A"menu x_homing" L"x_homing"
;button R99 C5 F0 T"Motoren Tests" A"menu x_motortest" L"x_motortest"
;button R63 C5 F0 T"Unload Filament »" A"menu x_funload" L"x_funload"


but i cant even save the s_prepare file in editor without a change. than it just says error to load error in line1
with what program can i make those changes or what else do i need to change that it works

Thanks everybody