Follow these steps:
1. Select the required category in the Categories Bar and press the button.
2. The confirmation dialogue box will appear requesting confirmation prior to deletion of the selected category and related tasks linked to that category.
Warning: If you delete a category all the tasks linked to that category will also be deleted.
3. Click the Yes Button.
6. To exit the dialogue, press Esc on the keyboard, or use the button in the category manager dialogue box.
button.
button in the category manager dialogue box.