List Manager Tutorial

Radiobutton is a single-choice control where all options are visible at once — best for two or three mutually exclusive values.

Key settings

Same Options editor as the Option List; set a default so one is pre-selected.

One of the column types on the Fields / Columns screen. The type sets how the column is shown in the list and how it is edited in the add/edit form. See them all together in the Field Types Showcase.