Click on MetaMask -> the circled picture to the right -> Select "Create account" -> name it.
The wallet will generate the same addresses you had before, you just need to recreate the accounts by following the above steps.
I did this step but it created a new account, different from the one I had in my previous wallet. Now how do I delete this account?
Is it possible?
My assumption the two accounts you have created before don't have any tokens? that's why when you imported your wallet to another computer, Metamask only show one account which is contain all of your tokens. So if you want to have three accounts in your wallet, it's either you leave a token in your other account or just create a new account in your new computer.
Yes, I do not have any balance or token in those accounts. So if i had the balance would it have been imported automatically?
Interesting learning
Anyways, just a general question why do all these accounts have a similar Recovery phase? Are they linked together? For example, if I connect my one account with any airdrop site, will the balance at my other account be at risk if I somehow connected one account to a phishing site or scam site ?