Connect a reseller panel (XUI.one) so you can auto-provision a device — the panel creates a line and m7k2 assigns it, no copy-paste.

• Register a panel: its admin API base (https://panel:9000), the admin access code, your API key, and the stream base (the client host:port for the device's Xtream URL — different from the :9000 admin port). The key is encrypted on save and never shown again.
• Test checks connectivity (lists packages). The panel's :9000 needs a valid TLS cert (self-signed won't work).
• Provision a device: pick the device, reseller, package + duration → m7k2 calls create_line and assigns the new Xtream line as the device's primary source.
• Changing a panel's admin base or access code requires re-entering the API key (it re-anchors the encryption).