Brother MFC 8840DN - Manual (Page 77)

USING CONTROLCENTER2.0 4 - 6
To change the destination application, select the appropriate
application from the Target Application pull down list. You can add
an application to the list by clicking the Add button.
Enter the Application Name (up to 30 characters) and the
Application Location. You can also find the application location by
clicking
button. Choose the File Type from the pull-down list.
If you want to delete application you have added, select
Application Name from the pull down list.
This function is also available for Scan to E-mail and Scan to
OCR. The window may vary depending upon the function.