You can add basic information regarding your store in the Admin area under Settings > basic information. The settings can be set globally or per sales channel.
Here you can first enter the shop name (1) of your shop and enter the shop owner email address (2). You also have the possibility to activate the shop as family-friendly shop (3). If you activate this option, the meta tag "isFamilyFriendly" will be set for search engines.
The meta tag "family-friendly" is stored for search engines in order to filter out certain contents, which may not be suitable for everyone.
Under shop pages you can define the shop page layout for your shop(s) for some areas within the modal windows in your storefront.
This includes the following areas:
How to create the different shop page layouts is explained in the wiki article of Shopping Experiences.