Any user can modify his or her own EC Gateway password.
Modifying your existing password
From the File menu on the EC Gateway main window, select Change Password.
Use the Properties button to change the properties of an existing user. Select a user and left-click Properties to display a window showing the user’s name. The Password, New Password, and Confirmation fields are blank.
Type your old password in the Old Password field.
Type your new password in the New Password field.
Confirm your new password in the Confirmation field.
Click OK.