I have another question, Is possible for the user to Import the private key into the wallet, and how?
To import a private key, go to setting and console. Type- importprivkey<space>yourkey & press enter. And to get private key,
dumpprivkey<space>youraddress
This wallet more or less works with the same command as of bitcoin core because the main source of the wallet is bitcoin core.
where the explorer to check the transaction?.
There’s official explorer-
https://explorer.eloncoin.org/