Field Set

A Field Set groups related components under a heading (legend) with a line beneath it, for example a Contact Information section. It's purely visual: it doesn't change how data is saved.

A Contact information legend with a line under it, above Email and Mailing address fields
A Field Set with its legend shown

Settings

Setting (Display tab)

What it does

Legend

The heading shown at the top of the group

Hide Label

Hides the legend. It is on for a new Field Set, so turn it off to show the legend.

Tooltip

Help text shown next to the legend

Custom CSS Class

Classes for styling

Like other layout components, a Field Set can be shown or hidden with conditions, and everything inside it follows.

A Panel is similar but has a title bar, color themes, and can collapse or clear its answers when hidden.