Since users of an OLVO region can not select any other option besides option 'B' from the main menu, consider defining an INSTALLATION CODE to the OLVO regions userid's that puts them directly into an online viewing related screen and bypasses the main menu when they log on.
Available INSTALLATION CODES that put users directly into online viewing are:
CAOV - Online Viewing Main Menu - (Screen VOVMI000)
CAMSG - Online Viewing MSGCLASS - (Screen VOVMI200)
CARPT - Online Viewing Reports - (Screen VOVMI010)
CARCP - End User, Online user viewing - (Screen VOVMI300 or VOVMI310)
NOTE - If you receive this DC900132 SECURITY VIOLATION - REQUESTED SCREEN DENIED error after logging on to a MAIN CA Dispatch region, then the indication is that your site is using EXTERNAL security, you have PANEL validation security turned on, and that the user receiving this error does not have the necessary panel access permission defined for them in their external security profile. Users receiving this error in a MAIN CA Dispatch region will need to follow-up with their sites external security administrator.