You can set up your business Information (Business logo, business name, and business address) on Settings -> Your Business
Beside business information, you can also manage your own information as a user dashboard such as your name, your email, and mobile phone number on Settings -> Your Profile
Note: If you change your email, the new email will be used to login to dashboard going forward.
In Your Profile, you can change your password
You can set your PIN in Your Profile which will be useful when you create batch disbursement or do refund for credit card transaction
For 2-factor Authentication will be discussed more on the 2-factor Authentication page