I saw it. Firstly, that article is too deficient in details. Secondly, here's what it says:
Function callback that enables you to bind events before the uploader is initialized.
I wanted, for example, to change text in the queue widget, so doing that "before the uploader is initialized" didn't make sense, yet this is exactly where it worked.
Still, this area is confusing. Good docs would help, but they don't exist. People have been inquiring about basic things that should've been covered by documentation.
Now I feel I might be interpreted as an ungrateful SOB. I am not. I am thankful for this software and that it's free. Good docs would help, though