currently blocked with this tricky scenario
please refer to attached screen shot for code
I'm not able to change value of header.
<div class="tb-title-container unedited">
<h1 class="tb-headline-inner">Untitled List</h1>
<input type="text" maxlength="255" class="tb-title-input chromeless"> <label class="tb-list-options">
</label> </div>

code generated by Selenium IDE
I tried javascript approach as well to set value of header field , but it's not getting changed. As header name change takes place only with keyboard enter key press.
driver.findElement(By.cssSelector("label.tb-list-options > svg")).click();
driver.findElement(By.cssSelector("li.rename.blue")).click();
driver.findElement(By.cssSelector("input.tb-title-input.chromeless")).clear();
driver.findElement(By.cssSelector("input.tb-title-input.chromeless")).sendKeys("vikram");
java code
WebElement inputField = getDriver().findElement( By.xpath("//div[@class='tb-title-container']/h1[@class='tb-headline-inner']") );
( (JavascriptExecutor)getDriver() ).executeScript("arguments[0].value='VIKRAM'", inputField);