Bug 194843 Cross tab Cube - Cannot delete a dimension using the cube builder
- Open the attached report design - Delete the "Region" group. Current behavior - Does now allow me to delete the group.
model/org.eclipse.birt.report.model.tests/test/org/eclipse/birt/report/model/command/ContentCommandTest.java
*             if any error occurs
	 * 
	 */
	public void testAddCompoundElementFromHandle( ) throws Exception
	{
		CascadingParameterGroupHandle cascadingGroupHandle = factory
				.newCascadingParameterGroup( "cas1" ); 
		cascadingGroupHandle.getParameters( )
				.add(
						designHandle.getElementFactory( ).newScalarParameter(
								"param1" ) ); 
		cascadingGroupHandle.getParameters( )
				.add(
						designHandle.getElementFactory( ).newScalarParameter(
								"param2" ) ); 
		testCopyAndPasteCompoundElement( (CascadingParameterGroup) cascadingGroupHandle
				.getElement( ) );
	}
	/**
	 * Test cases:
	 * 
	 * 1. with the given CascadingParameterGroup, test copy/paste twice and
	 * check changes of name spaces.
	 * 
	 * @param cacascadingGroup
	 * @throws Exception
	 */
	private void testCopyAndPasteCompoundElement(
			CascadingParameterGroup cacascadingGroup ) throws Exception
	{