First, thank you for adding Calibre to Portableapps, I think it's a great addition.
As Calibre is a relatively new addition, I had installed the official "Calibre portable" version from their website and put it into the Portableapps directory. It shows up as a regular app and works well. However, I have to manually update it by downloading the portable version and then installing each time there is a new version out (which is very frequent with this program). I would like to just run the portableapps version but I don't want to lose all the settings, plugins, etc..
My question is: Is there a way to transition from the official portable version to the "portableapps version" without losing all the settings, plugins, etc?