A custom container is a control into which you can place other controls. It allows the screen framework to resize and compress controls at runtime.
For further information about control technology, refer to the
SAP Control Framework documentation..
Prerequisites
You must already have opened the graphical layout editor in change mode.
Procedure
Result
You have now created a custom container. The actual reserved area in the Screen Painter is a placeholder for the control that you will embed there. The custom container is referred to as the parent of the control or controls that are to be embedded in it.
See also:
Creating a Control using the SAP Picture as an Example