Fields are used in Profiles, and fields which are to be re-used in the multiple profiles are created in this field Page.
On the Field Overview page, we can see different column option like below

On click of New Field button in fields home page, Side panel will opened to create new field.

Side panel will have option to choose field type and a input field to enter field name and Create button

After entering the Name and clicking Create button, a toast message will be displayed to show the success of the operation and the create field will be populated in the Field overview page.

Each Field will have kebab menu and its options, Edit and Delete



Sort
A Sort icon is present against every field which allows a user to sort and display the data in either ascending or descending or in a default order.
Total
Total Field shows the number of field are available in the fields overview page.
Search
Search Field is available to search any particular Field in the overview page.