Could you please double-check if you can locate the Help menu option on the Menu bar located at the very top of your desktop? You should be able to find the Help menu there which can invoke the License key storage. In case if the Help menu does not display in the Menu bar, then could you please send us a screenshot, so that your Viewer is visible along with the Menu bar (please make sure to hide/blur any sensitive information).
Hi Pauline, I just signed up for the free version. I am confused between Internet ID (a 12 digit number to identify a host so I can connect to it?) and the License key. I see there is a host key certificate (sometthing.pem). What role does that play?
Do you mean the Host's certificate that can be found in the Host Settings -> Host identity tab? If this is the case, then please note that it's used for an automatic certificate-based Host identity check mechanism. Host's Internet-ID code is used when you want to connect to a remote Host using Internet-ID connection. For more information please see this page on Internet-ID connection.
As for the license key - it controls the limit on how many remote connections you can add to your address book, for example, free license allows to add up to 10 remote Hosts. For more information on the license types please see this page.