Bug 94625 [Forms] [preference pages] Moving selection of triangle does not scroll
I20050509-2010 - Preferences > Java > Compiler > Errors/Warnings - expand sections until vertical scroll bar appears - scroll to top - set focus to an open section triangle - press arrow down key several times => the selection moves out of the visible region => Expected: the area is scrolled down such that the selection is visible (including as much as possible from the section's contents). It would also be nice if the area could be scrolled with Ctrl+Shift+Arrow_Up/Down (as for Trees) or Ctrl+Arrow_Up/Down (as in the editor).
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/OptionsConfigurationBlock.java
return (ExpandableComposite) parent;
		}
		return null;
	}
	
	private void makeScrollableCompositeAware(Control control) {
		ScrolledPageContent parentScrolledComposite= getParentScrolledComposite(control);
		if (parentScrolledComposite != null) {
			parentScrolledComposite.adaptChild(control);
		}
	}
	
	protected ExpandableComposite createStyleSection(Composite parent, String label, int nColumns) {
		ExpandableComposite excomposite= new ExpandableComposite(parent, SWT.NONE, ExpandableComposite.TWISTIE | ExpandableComposite.CLIENT_INDENT);
		excomposite.setText(label);
		excomposite.setExpanded(false);
		excomposite.setFont(JFaceResources.getFontRegistry().getBold(JFaceResources.DIALOG_FONT));
		excomposite.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, false, nColumns, 1));
		excomposite.addExpansionListener(new ExpansionAdapter() {
			public void expansionStateChanged(ExpansionEvent e) {
				expandedStateChanged((ExpandableComposite) e.getSource());
			}
		});
		fExpandedComposites.add(excomposite);
		return excomposite;
	}
	
	protected final void expandedStateChanged(ExpandableComposite expandable) {
		ScrolledPageContent parentScrolledComposite= getParentScrolledComposite(expandable);
		if (parentScrolledComposite != null) {