LeanKit's step-by-step guide on how to change a user's log in password.
If you are an account administrator in LeanKit, you can change another user's password for them:
Click the three gears icon from the home screen to open Account Settings.
In the Account Settings window, go to the Account Users List tab and hover your cursor to the right of the user’s name and click the Key icon.
Type the a new password in the Password field, and again in the Confirm Password field.