Bug 175766 Filter tab on a table is missing the Add buttons
There is no way to add/delete a filter on the table.
UI/org.eclipse.birt.report.designer.ui.views/src/org/eclipse/birt/report/designer/internal/ui/views/attributes/page/FormPage.java
{
	private int style;
	private IFormProvider provider;
	private boolean withDialog = false;
	private boolean isTabbed = false;
	private FormSection formSection;
	private Composite composite;
	public FormPage( int style, IFormProvider provider )
	{
		this.style = style;
		this.provider = provider;
	}
	public FormPage( int style, IFormProvider provider, boolean withDialog )
	{
		this.style = style;
		this.provider = provider;
		this.withDialog = withDialog;