How do I change my login details?
By clicking on your name in the top right hand corner, then clicking on 'Users' you will see the option to change your name, email address and password. If you have admin rights you will also be able to change details such as spaces and user rights for other users.
If you click on 'Edit' and you will see the below options:
How do I change my password?
You can either change your password via the User settings as seen above or by clicking on the 'Security' section. Here you will see where to enter your current password followed by the new password.