importPackage( Packages.org.eclipse.birt.report.model.api ); elementFactory = reportContext.getDesignHandle().getElementFactory() var mytable = reportContext.getDesignHandle().findElement("tableDetail"); var tDet= mytable.getDetail().get(0); var aCellProcess= tDet.getCells().get(0); aCellProcess.setColumnSpan(4); // work //aCellProcesso.setRowSpan(4); doesn't work