Change your email for registration and your personal data
Within the web app, open the menu by clicking on your name on the lower left and then click on your profile.
In the Personal settings section you can now change your data under Details.
Click Save after you have made your changes.
Change your password
Within the web app, open the menu by clicking on your name on the lower left and then click on your profile.
In the Personal settings section you can now change your password.
First you will need to enter your current password.
Then enter your new password and repeat the new password in the next line.
Now click on Save.