Adding a feature category allows you to organize your features. Sometimes, a hotel will have multiple restaurants or even multiple pools and having a good way to group them allows each feature to be easily accessed and changed if needed. Once you click on the feature category section, it will bring you to another screen.
From this screen, you will be able to enter in a category name and add photos to better organize your Features into a Feature Category. Once you have this Feature Category created, you can utilize it to store multiple features.