I Assume you're talking about the private keys.
Your password in combination with your account name is used straightaway to generate your private keys. So you won't be changing your password (in settings, that one is on the left, under accounts)
These keys are used to let you log in from any computer and also for sending encrypted messaging
Thanks fx4all. So I can use my account name and any private key I've generated, to login to my account with any browser, and I can also use my account name and password to do the same thing? If so, is it possible to remove the original password that was used when creating the account?
I've tried to use the "Add password generated keys" option to create new keys. When I click "Publish Changes", it asks me to confirm the transaction, and when I click confirm, it says "Failed to broadcast the transaction", regardless of what combination of new active/owner/memo keys are selected to be used. I do have enough BTS for the fee. I'd paste the error message, but it seems to contain my old and new keys...