There are a number of sub-control types available for use as a container:

Absolute Layout Container

Container for explicitly positioning controls.

Alignment Container

The Alignment container can be used to left, center, or right align groups of controls.

ButtonGroup Container

Used to group multiple buttons together such that they appear as a single control

ControlGroup Container

Controls in a ControlGroup container are rendered using a mobile style.

Editor Container

Used to create Editor Sets for the FormView Control.

EditorSet Container

Used to contain one or more Editors.

FlexLayout Container

Used to define the width of controls on a single line.

Injectible Content

Contains controls and other elements that can be "injected" into other locations in a UX Component, such as a DIV or List Footer.

NoFloat Container

Controls in this container are not wrapped in a div when rendered.

PanelFooter Container

Defines a footer for a Panel.

PanelHeader Container

Defines a header for Panel.

PanelOverlay Container

Creates a Panel shown on demand that renders in fixed location.

RepeatingSection Container

Used to create a repeating section.

SpinListGroup Container

Groups Spin List controls together, creating a single, complex 'spin list'.

Window Container

Places controls in a Window container

To learn more about the different container types, watch the video below: