To access the Slingbox Directory on the Windows 8 application: open SlingPlayer for Windows 8 in any mode, swipe from the right edge of the screen toward the left to reveal the Charms panel, or move your mouse pointer to the top right of the screen and wait a moment for the Charms panel to appear. From the Charms panel, select "Settings", then "Options" then finally "Devices".
If you have any further questions about the SlingPlayer for Windows 8 application, check out the FAQ linked below:
Hope this answered your question!
Sling Media Forum Moderation Team