Check the box for PanelDue support if you intend to use one.

Check the boxes to download the latest DWC and firmware files as part of the bundle.

Optionally, if you are following along with the Ender3 guide you can add the custom gcode section shown in the image to add some extra features.

Click Finish to get your complete config file set.

Use the blue button at the bottom right to download a zip file that contains all of the necessary config files.