Bug 142104 Cannot place data set field on master page
Bugzilla 122419 says this is fixed. I am using RC2, and I can't insert a data set field in the master page header or footer.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dnd/InsertInLayoutUtil.java
}
	private static GroupHandle getGroupHandle( Object target )
	{
		DesignElementHandle handle = null;
		if ( target instanceof CellHandle )
		{
			handle = ( (CellHandle) target ).getContainer( ).getContainer( );
		}
		else if ( target instanceof ListBandProxy )
		{
			handle = ( (ListBandProxy) target ).getElemtHandle( );
		}
		if ( handle instanceof GroupHandle )
		{
			return (GroupHandle) handle;
		}
		return null;
	}
	/**
	 * Inserts invalid column string into the target. Add label if possible
	 * 
	 * @param expression
	 *            invalid column or other expression
	 * @param target
	 *            insert target like cell or ListBandProxy
	 * @return to be inserted data item
	 * @throws SemanticException
	 */
	protected static DesignElementHandle performInsertString(
			String expression, Object target ) throws SemanticException