Plugins Editor Screen – Missing Files

When you’re in the Edit Plugins screen (Admin|Plugins|Editor), when you click on a file on the right-hand side (under Plugin Files) and that file is in a subfolder, you don’t have a way to move back up to the root folder of that plugin. Makes it kinda hard to browse through the different files of a plugin.

This occurs in WP3.5, I haven’t tried in prior versions, nor whether it affects other editor screens.