Deck Editor Tab > Browse... > Open directory...
When I click that button, it opens up Windows Explorer (as it should), but there's no button to confirm a directory. There's no way to choose any other directory than the default plugin "decks" directory. This makes it rather inconvenient when you have more than a few decks with various names.
I'm on Windows 7, using LackyCCG Windows -> Build Date: 09-22-14. I've tested this with multiple plugins.