As on the image I have to click on the highlighted iFrame and I'm on
Jmeter Web Driver Sampler.
The issue is the bottom part of the iFrame id will get change time to time.
So can't exactly identify it using ID.
If this is with C# then I can get a list with all tag names == iFrame and click on the selected iFrame.
But with Jmeter Web Driver Sampler I'm not sure how to do something like this.