What is the OZW log GUI command supposed to do?

Regardless of whatever value I put in for the number of lines or which button I press, nothing happens. Is this supposed to show the log on the same page?

ETA: It was trying to open a popup and chrome was blocking it!

I’ve got the same issue. Nothing happens whatever value I put on the line

Check your browser to see if it is trying to open a pop up.

That It was. Thank you.