To efficiently use window space on a TABBED PANE more TABBED PANE's may be 'nested' within the first.
Add a Child TABBED PANE LIST to the top-level one, then add a Child TABBED PANE under it and continue adding GUI objects.
An example of two nested TABBED PANES is shown below.
The EASAP Tree below shows nested TABBED PANE's