Hi @<1639074542859063296:profile|StunningSwallow12> , to answer your questions:

• Technically speaking the UI uses the API to do this, so you can generate it via the API. I would suggest opening dev tools (F12) and seeing what the web UI sends to the backend when you create the credentials through the UI.
• Yes. Simply point all clearml.conf files to point to the NAS instead of the files server