Menus (covered in Creating Menus) can have components that are also choices. These components are groups of items that have an interaction upon selection just like other choices. The
:interaction
keyword is used to associate radio or check buttons with the group -- with the values
:single-selection
and
:multiple-selection
respectively. By default, a menu component has an interaction of
:no-selection
.
See Grouping menu items together for more details.