No one can guess a password because of the system design. It is not a matter of 'hide-show' - passwords are stored in db as a hash. For example, when CouchCMS itself needs to check a password (when a user logs in, for example), then it takes user input, hashes it and matches the new hash to the stored hash. It is not possible (other than brute force) to find the password, not even for superadmin..
If user forgets the password - implement lost-password.php template - user will be able to reset his password and confirm it via email.
Next, if you still must manually reset passwords, then just create a new password for the user and mail it to his email. CouchCMS doesn't require to input old password to set a new one

Maybe a custom button in admin list-view or form-view will be comfortable for admin to set a random new password and mail it in one go. You can save user's password in a text editable as well (not recommended

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