How to move a category and its contents
As you add to your documentation over time, it's to be expected that you'll want to reconsider your account structure. We make it easy to move your categories around in a way that works best for you. When you follow these steps, you'll move a category into another category, so it becomes a subcategory.
If you want to reorder how your categories appear in the left sidebar, check out this article.
Step 1. Click Categories in the left sidebar.
Step 2.Once you are in the list of Categories, click the kebab menu next to the category you'd like to move and select Move.
Step 3. Choose where you'd like to move the category and its content into. After which, click Move category.
Click Move category.
If instead you want to promote a Subcategory to a top-level Category, click the X in the category selector.
Then choose Uncategorized and click Move category