Bug 188027 PasteAction is diabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/SlotHandle.java
ContentCommand cmd = new ContentCommand( getModule( ),
				new ContainerContext( getElement( ), slotID ) );
		cmd.remove( content, false );
	}
	/**
	 * Drops a content element at the given position from the slot, and
	 * unresolve any reference property which refers the element to drop.
	 * 
	 * @param posn
	 *            the position of the content to drop
	 * @throws SemanticException
	 *             if the position is out of range
	 */
	public void drop( int posn ) throws SemanticException
	{
		DesignElement content = getElement( ).getSlot( slotID ).getContent(
				posn );
		ContentCommand cmd = new ContentCommand( getModule( ),
				new ContainerContext( getElement( ), slotID ) );
		cmd.remove( content, true );
	}
	/**
	 * Returns the internal representation of the slot. Use this object only for
	 * reading: make all changes through this handle.
	 * 
	 * @return the internal representation of the slot
	 */
	public ContainerSlot getSlot( )
	{
		return getElement( ).getSlot( slotID );