How to use the Category Manager in Joomla
Log into Joomla admin panel.
Articles are organized into sections and categories in Joomla. Sections are top level organization followed by categories, which are ordered by the particular sections.
Click Content – Category manager. On this page, you can publish, unpublish, move, copy or delete categories or create a new one.
Select the checkbox for publishing a category. Click on Publish button. Similarly, for unpublishing, check the box of category and click on Unpublish button.
To move a category to different section, select checkbox to the category to which you want to move. Click on Move button. Select a new section for moving. Scroll on right. Click on Save button, when done.
To copy a category to different section, select checkbox next to category, click on Copy button. Choose the section for copying the category. Click on Save button.
To delete the category, select them and then click on Delete button.
You can edit a category by checking it and clicking on Edit button. Fill in the details and then save it, when done.
For creating a new category. Click on New button to create a category. Enter details. Click on Save button.