Whenever you use an Metro app and you want to import some files there is a little file browser. Like this:
A lot of folders possible; however there is a folder that is very important: The personal Dropbox. How can I add this folder as a "favorite" in this view? Always browsing through the whole filesystem is slow in the Metro Interface. I realize I could make symlinks for all the typical Dropbox folders but that's simply annoying and there has to be another way (just like it's possible to "hack" the "Send To..." options for the context menu.