RiddleStyx on Nostr: Also, Coinos when I go to the settings area there's a Nostr integrations area that ...

Also, Coinos (npub1h2q…w8ch) when I go to the settings area there's a Nostr integrations area that has an npub and nsec. So that's obviously different than my nsec and npub I'm using here on Primal / Damus. Below that is an "Import secret key" option. I tried using that and pasting the nsec I'm using here, but it says:

"Something went wrong

Method Not Allowed"

Am I supposed to import the nsec / npub I use here on Primal / Damus or is this a separate thing? I have nip-05 for the npub I'm using here, but I see that my RiddleStyx@coinos.io also has a .well-known/nostr.json?name=RiddleStyx that shows the hex of the npub currently showing in the Nostr integrations area.

I'm just a little confused about what I'm supposed to be using / doing here. The "Support" link just goes to a contact form and the "Documentation" link shows API documentation but doesn't explain how things work.

Any help? Thanks!