Hello warbaby !

Welcome to aboard! Let's review your questions:

1) The ley-secret pair may be took here https://una.io/page/my-sites . Generate it to your domain and then enter your Studio->Settings->General settings area.

2) Yes, we're now in the coming release of UNA 11, so we have similar issues when the apps aren't compatible with the core. So you need first to install the Developer module of 10.1. See how to do it here https://una.io/page/cmts-view?sys=bx_forum&id=4888&cmt_id=22380

Then go to Studio->Developer area and switch the value of "Update channel " form stable to "beta", then press "Save". You have enabled autoupdate so it will be automatically.

Then install the necessary apps.