change password on one of many emails in Outlook 365

I have Office 365 and am using Outlook 365 with 5 email addresses.  I need to reset the password on one of the email addresses, but not the email address that is my office 365 login.  If I go to settings, account settings, select the email address I need to change and hit change, there is no option to change the password.  I can hit reset mail settings and hit Next and it says it is done.

Do I have to remove the email account and then add it back in to set the new password?