You've got a lot of options with your categories and they're pretty easy to navigate. Here's how:
1. While viewing a list, head to the main menu
2. Select Manage categories
3. Tap the plus icon symbol to add a new category
or tap on an existing category to edit it
Want to change the order of your categories?
If you long press or hold your finger down on a category, grippies will appear on the right side of the screen. Press on a grippy to reorder your categories by dragging and dropping them in your desired order.