Hi Joe,   
      
   Yes you can set the max of message on a echo, you can do this into the   
   settings, or when you click in the right corner on a echo you can also set the   
   max of messages on that way for every echo.   
      
   Into the setting is for global max messages on every echo.   
      
      
   Best regards!   
   Rudi Timmermans.   
   --- AfterShock/v1.7/For BlackBerry 10 OS   
    * Origin: i-Fido System Mobile (2:562/140)