Edit your account settings and upgrade your subscription
Click My Account in the navigation bar to get to the page where you can edit your account settings.
Edit personal information and change your password
You can change the first name, last name, email address, password, security question and security answer of your account on this page.

The account settings available from the "My Account" page.
Find information about your current SpreadsheetWEB edition
There is a table that shows the edition you are currently subscribed to as well the features of this edition.

This box shows your current SpreadsheetWEB edition and included features.
Upgrade/downgrade your SpreadsheetWEB subscription
All information on how to upgrade your subscription is provided in My Account in the SpreadsheetWEB Control Panel.