You can generate a new local key using the following:
$lumdkeysadd<name>
It will ask for a passphrase, two times. Once generated it will echo a few informations:
$lumdkeysaddtestEnterapassphrasetoencryptyourkeytodisk:Repeatthepassphrase:-name:testtype:localaddress:lum14hjqg48twngvujs2xhkac8mhzncjqg8wq0easjpubkey:AxdPTMtvjPdu40WJSo4gmSCU0x4+y6SPUvdELZq+kvgCmnemonic:""threshold:0pubkeys: []**Important** write this mnemonic phrase in a safe place.Itistheonlywaytorecoveryouraccountifyoueverforgetyourpassword.portionscorpionengagesalonmilkmotherbrainmentiondramadietmotionbreadseekonescissorsdietoperarefusepandafiscalwagetragicmomentexhaust
The key will be automatically saved in your local disk. However we recommend you to save the mnemonic on a safer place.