At the moment you can only resend the activation link.
It would be great if you could also set a password in the Web-UI.
At the login page the user can click on Forgot or reset your password - does that solve your request?
Sorry for the delayed response. At this time we'll stick with the current forgot/reset password solution as it is in line with our thoughts on two-factor authentication. But I'll mark the topic as postponed until Development is ready to take another look :)
Thanks again for your suggestion!