To avoid confusion of users we need a custom landing page for the second "special" TBB instance, that explains it won't connect to the clearnet for priavcy reasons. The page would have the Whonix ASCII but none of the other clearnet links. Something along the line of "Attention: This browser is configured to connect to local proxies only. Please check bookmarks for possible destinations. Make sure you have installed/enabled the corresponding software."
Custom Bookmarks that point to:
*I2P router config page
*Any other major default eepsites
*Zeronet landing page
Other ideas welcome.