Customizing the metamodel > What you can do with USRPROPS/SAPROPS > Layout capabilities > Tabs and chapters
  
Tabs and chapters
The CHAPTER command separates the properties of a Definition into tabbed groupings. The name of the Chapter is displayed in the tab.
System Architect calculates the number of controls that fit on a dialog page based on the amount of space available for display. When the space necessary to display the controls exceeds the space available on a dialog page, System Architect adds a new page to the tab, and the overflow controls are added to it: see Pages in tabs.
See also
Layout capabilities