GUI Builder makes creating a split pane simple.
From the menu bar on the main GUI Builder window, select File --> New File.
From the menu bar on the GUI Builder File window, click
the Insert Split Pane tool button
to display a panel builder
where you can insert the components you want in your split pane. In the following
example, two components are added.
Figure 1: Creating a Split Pane with GUI Builder

After you
create the split pane, click the Preview tool button
icon to preview it, as shown
in Figure 2.
Figure 2: Previewing the Split Pane with GUI Builder
