Yes, only one nsec per wallet. Do you want to use a different wallet for the other nostr identities?
Otherwise it's also fine to add the same wallet multiple times, and just use different nsecs with each account.
Ooooh yeah of course. Didn't try that yet.
It seems quite some people don't know about the multi-account features. Do you have any ideas on how to improve this in the extension?
I'll think about it :Check:
It's different from what I'm currently designing, where the Wallet is a subset of the Profile.
With you guys the Profile is a subset of each Wallet.
If you want to use a different Alby account you would need to login to the account you want to connect on getalby.com first, and then connect the extension. (we have some improvements coming with the next release that should make things easier for multi-account setups)