Two Domains in Same A/C

I have an account with name.com domain registrar.

The problem is I registered two domains under this same single account. Now I have found someone to whom I can sell one of my domains. So, how can I sell it now?

I mean if I have to sell just that one domain, I need to share the name.com login and password which I can not because I have my another domain also under that same account.

So, is there any remedy for this? or Can't I sell just that one domain at all?

there should be an option to transfer the domain to another name.com account owner. just have the person buying it create an account, get their info, and push it over.