Their algorithm page [1] contains this: > The site's password counter (default: 0): This is an integer that can be incremented when the user needs a new passwo

Their algorithm page [1] contains this: > The site's password counter (default: 0): This is an integer that can be incremented when the user needs a new password for the site. So it looks like you can generate new passwords anytime you want on a per site basis. [1]: https://ssl.masterpasswordapp.com/algorithm.html https://ssl.masterpasswordapp.com/algorithm.html