Looping through and clicking all links contained within a div

Web Testing
9

First thing, there is no click method that takes a second parameter as boolean.
Second thing, if you want to use parameterization as you have it above, you should create a TestObject in your Object Repository and put in a Value of xpath with a Name of ${index} (see how they do it in the link)
Third thing, what is the [‘+a+’]' supposed to be??? You need to verify your pathway before you try to parameterize it.

Another way you could perhaps do this

import org.openqa.selenium.WebDriver as WebDriver
import org.openqa.selenium.WebElement as WebElement
import com.kms.katalon.core.webui.driver.DriverFactory as DriverFactory
import com.kms.katalon.core.webui.keyword.WebUiBuiltInKeywords as WebUI

WebDriver driver = DriverFactory.getWebDriver();

for (int i = 0; i < tasks.size(); i++) {
    myItem = driver.findElement(By.xpath("//a[text()='${tasks[i]}']//parent::p//parent::div//parent::td//parent::tr//td[10]/div/p/a)"));
    myItem.click();
    WebUI.delay(5)
}