The Activities Tab allows you to change your login password or edit your email signature when sending emails.
Clicking the Change Password link redirects you to the Change Password box where you can type in the New Password box your new password and retype it in the Confirm New Password box. Click the
Save and Return 
button on top of the page to save your new password and return to the Home Page or click the
Cancel 
button to cancel changing your password and return to the Home Page.
The Edit E-mail Signature link redirects you to the Edit E-mail Signature page where you can type in the body section your new e-mail signature. You can use the formatting toolbar to format your email signature. And you can select at the bottom of the page whether you want to edit it in design view or HTML view. Click the
Save and Return button on top of the page to save your new e-mail signature and return to the Home Page or click the
Cancel button to cancel editing your e-mail signature and return to the Home Page.