Roadmaps can be configured and customized in many different ways.

To get started, navigate to your Roadmap view and then select the "Edit roadmap" button:

This will load up the Roadmap settings modal. From here you can customize your internal view as well as your public roadmap view.

The majority of settings will have two options, one for each of your internal and public views:

Every setting has a small blurb about what it controls.

Once done, don't forget to save!