Switching off a drop-list of files

[Ofnuts]

What you show in the video is the entry filed also acting as a filter. So when you have a completely empty name it matches all the files, but as soon as you enter a few characters, the matching list is drastically reduced. And, by the way, the this field also does name completion, so if you hit [tab] in the middle of a name, it completes up to the common part of all the matching names.

And before you ask, I have checked this on 2.10 too... so it's not "new" AFAIK.