copy/paste from your Instructions:
Add Categories
The Setup Wizard allows you to add five categories. If you wish to have more than five, you can add additional categories later, under the Forums » Category Settings section of your control panel. Once you've created your categories via the Setup Wizard, click Submit.
Note:UBB.threads™ creates a default category called "General Discussion". If you wish to have a category by the same name, there's no need to create it here. If you wish to change the name of the category, or delete it, you may do so later under the Forums » Category Settings section of your control panel.
Add Forums
You will now see your newly created categories in a list and have the opportunity to build forums within these categories. To create a forum, choose the category to which you'd like to add and click the [+] symbol to expand that section. The Setup Wizard allows you to add up to ten forums in each category. If you wish to have more than ten forums in a category, you can add additional forums later, under the Forums » Forum Settings section of your control panel.
Create your forums by adding the Forum Name, Forum Description (optional), and choose whether or not users are required to log in before posting with the Anonymous Posting? setting. When you've finished setting up your forums, click "Submit".
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Don't I have to create Categories first and than add Forum sections under each Category?
I don't understand why the first option is Forum Basics:
Forum Title:
Forum Description:
?
Can I skip that and just Add Categories and than add Forum sections under each Category?