Using Katalon with the Applitools Plugin

I’m trying to use Katalon with the Applitools Plugin. I know that there are the two Keywords ckeckTestObject(…) and checkWindow(…). But I only want to check a part of the window and I can not identify this using a TestObject. checkWindow(…) also doesn’t work for me.

So here is my question: Is there a way to check a part of the website (maybe identified with coordinates) using the Applitools Plugin in Katalon? Or check only the displayed part of the website?