I have a question, I am new to Electrum and currently posses some BTC in my newly created standard Electrum wallet. I would like to enhance the security by utilizing multisig or 2FA before sending this BTC to a marketplace wallet. Am I able to 'upgrade' my regular standard wallet to a multisig or 2fa wallet? or would I need to create 2 new multisig wallets and then transfer the BTC from my standard wallet to multisig wallet? I assume you are able to transfer funds between different wallet types correct?