AmigoCloud is like any other online application which saves some user information about you so that others in your organization can identify you when sharing projects with you.
To change your user settings, go to the menu in the upper right and click on the "Settings" Button. From there it will take you to the User Settings Page.
User Settings in the main menu
User Settings Page
From this page you can add a photo to your profile as well as change your organization and password. For advanced users you can link to an ArcGIS Online Account as well as insert a Custom ID for user tracking across platforms.
Once you make any changes, click the save button to update your information.