Sections are main headings on left menu of the main page. 

Step 2.  Click Sections on the main menu.

Step 4. Enter a new section by inserting category and sort order where index starts at 0.

Step 5. Visible checkbox makes section visible. Uncheck will hide the section name

Step 6. Edit or delete links edit or delete the existing sections.

Notes:

• Do you know , you can hide the section in your site by unchecking the visible button in the above window