element("formID:multipleNodePathsSelectionTreeTableID:0:categoryID").click();
TreeTableInspector multipleNodePathsTreeTable = treeTable("formID:multipleNodePathsSelectionTreeTableID");
Actions down = new Actions(getDriver()).moveToElement(
getDriver().findElement(By.xpath(multipleNodePathsTreeTable.getXPath())))
.sendKeys(Keys.ARROW_DOWN);
down.build().perform();
// multipleNodePathsTreeTable.keyPress(Keys.ARROW_DOWN);
element("formID:multipleNodeDatasSelectionTreeTableID:0:categoryID").click();
TreeTableInspector multipleNodeDataTreeTable = treeTable("formID:multipleNodeDatasSelectionTreeTableID");
down = new Actions(getDriver()).moveToElement(
getDriver().findElement(By.xpath(multipleNodeDataTreeTable.getXPath())))