PW4 Script to remove annoying message?

I am wondering if there is or can be created a script or something to remove the annoying message when I load books to my PW4.

Here is the message in full:

There is a "downloads" folder in documents, to which, as an experiment, I have added some books. There is no change in how viewing these documents is done after the device is disconnected. It is not the way I plan to add books, however. Also, I should note that this message in no way prevents me from adding more books the usual way (via Calibre). Also there is something like 4G free space on the device, so I find it very annoying that this message appears.

Yes it is merely an annoyance easily dealt with. I am just wondering if any of you programming geniuses have a way to silence it!

Thanks!