missing information in the GPG Plugin Portable description

In the description are no information were to copy the keys from local installation.

If you are a GPG4Win user the keys are located her C:\Users\XYZ\AppData\Roaming\gnupg . If you copy all the content to ThunderbirdPortable\Data\gpg you have all your keys from the local installation in the ThunderbirdPortable integrated and are present if you want to write / read a encrypted mail