If you have restored the metamask wallet with the mnemonic phrase, Goto Add account or hardware wallet. On there, choose Add new account. All your previous account would be restored one by one. The address would come up in the same order so add 4 times to get 4 accounts. You don't even need to remember the public keys, mnemonic phrase restores all the public and private keys associated with it.
If you have restored the wallet with private key, you can't restore your previous wallets.