In asterCRM config file: astercrm.conf.php, it provides a option, with the option, you can set the information displayed in the agent work page.
The parameter is “portal_display_type”, there’re two valid values, “customer” and “note”
When it’s “customer” mode, it would display all customers agent putted
customer mode
When it’s “note” mode, it would display customers with “note” and priority is greater than zero
note mode