Well I have this in
Addons > Editor Windows > Current Event Data.
I think it's delivered when installing ArrayMaker? What I know is that I didn't code it.
I wonder if it's a leftover from Jean's master file that sleeps on his github account...
As we see, the 'Addons' adds a new category in the Playmaker menu and shoves itself between Playmaker Editor and Editor Windows but then a large portion of it duplicates the root structure and it might be redundant.
I also can't post a picture: I click the chose a file but nothing happens, there's perhaps an issue with the latest Safari. I notice it blurs the typed text if it is bigger than the text field.