License Extension where on homepage

[tarnkappe]

And one FAQ is missing in all the text I saw. At least I cannot find such an information: Where can I find my license code? Is there a way to display it from the installation? At least there is a link to open the license details. Shouldn't it be possible to simply click an extend button on this page? Well, there is a link, but it does not set the code into the form...

I remember that the license can be found in the mail you get when purchasing the license for the first time? So I have to find this mail...