Manually selecting the column type to be a checkbox.
Empty column with type text.
Empty column with type number.
Empty column with type checkbox.
Empty column with type URL.
Empty column with type email.
Email
type column. Read more here
Email draft initiation button.
Empty column with type select.
+
button to add a new field to your list of options.
Adding options to a select column.
Empty column with type multi-select.