In the Magento admin, go to Stores > Settings > Configuration. Scroll down to the bottom of the page, and expand the Single-Store Mode section and set Enable Single-Store Mode to “No.”
Maxime Coudreuse, developer of Product Manager for Magento: User-friendly product editor with customizable grid interface and category tree for Magento 1 and 2
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.