Marlin Builder
thingiverse
These guys created a tool to update Marlin easily: Currently, only in spanish. https://3dwork.io/marlin/
Download Model from thingiverse
With this file you will be able to print Marlin Builder with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Marlin Builder.