For those interested, we've released a beta for an Xbench Add-In for Passolo, similar to the Xbench plugin for Studio. You can find more information on how it works here.
AFAIK, the beta works with Passolo 2011 Translator Edition and Passolo 2016 Translator Edition, although it might work on other 2011 and 2016 editions. However, it currently does not work (and therefore does not try to install) on Passolo 2015 Translator edition.
If you have the time to test it and have any feedback (issues, suggestions), we'll be very happy to receive it, just reply here or contact us.