The Browse and open Document buttons generally work hand in hand. They are generally tied to the same field
and allow you to select a file and save the path of the file to the field (Browse button) and to open the file which path is contained in the field (Open Document button).
In the following video, we demonstrate how to add both buttons to your layout and how they work.
Please note how, as shown in the second part of the video, selecting a default folder affects the behavior of both buttons.