Bug 151960 Library element popup menu display is wrong.
1:Creat a libray, add a table to this libray. 2:public this library. 3:Creat a report design. 4:Open the library explore, drag the table to the layout editor. 5:Select the table row, copy the selection row. 6:Select other row, clik the right button of the mouse to popup the menu . The result:Paste action and insert copied column action is highlight.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ColumnBandShiftAction.java
data.setColumn( column );
			}
			catch ( CloneNotSupportedException e )
			{
				assert false;
			}
		}
		List cells = getCellsContextInfo( adapter
				.getCellsUnderColumn( sourceIndex ) );
		data.setCells( cells );
		if ( !isRectangleArea( cells, 1 ) )
			throw new SemanticError( adapter.getElementHandle( ).getElement( ),
					new String[]{Integer.toString( sourceIndex ),
							adapter.getElementHandle( ).getName( )},
					SemanticError.DESIGN_EXCEPTION_COLUMN_COPY_FORBIDDEN );
		if ( adapter.hasDroppingCell( cells ) )
			throw new SemanticError( adapter.getElementHandle( ).getElement( ),
					new String[]{Integer.toString( sourceIndex ),
							adapter.getElementHandle( ).getName( )},
					SemanticError.DESIGN_EXCEPTION_COLUMN_COPY_FORBIDDEN );
		return data;
	}
	/**
	 * Returns the actual position for the shift action. This is to keep
	 * consistent with the behavior in <code>ShiftHandle</code> and
	 * <code>PropertyHandle</code>.
	 * 
	 * @param posn
	 *            the source position
	 * @param newPosn