Bug 205938 Cross Tab: 2.2.9 Measures from a cube can be dragged and dropped to left and not to right.
If user wants to show an existing measure on a cross tab that he has defined in a cube, he can only add it to the left and not to the right of an existing measure. Proposed solution User should be ale to add a measure both to the left and right of an existing measure.
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/editors/editpolicies/CrosstabCellFlowLayoutEditPolicy.java
/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.gef.editpolicies.OrderedLayoutEditPolicy#createMoveChildCommand(org.eclipse.gef.EditPart,
	 *      org.eclipse.gef.EditPart)
	 */
	protected Command createMoveChildCommand( EditPart child, EditPart after )
	{
		Object afterModel = null;
		if ( after != null )
		{
			afterModel = after.getModel( );
		}
		CrosstabFlowMoveChildCommand command = new CrosstabFlowMoveChildCommand( child.getModel( ),
				afterModel,
				child.getParent( ).getModel( ) );
		return command;
	}
	
	private EditPart getOperator(EditPart child)
	{
		if (child instanceof CrosstabCellEditPart)
		{
			return child;
		}
		return child.getParent( );
	}
}