In the quickselect menu, select the item "Say ..." and get, in the submenu, the following possibilities: 

"Say nothing" shuts Anna up when she is reading a checklist. 

All checklists and passenger announcements can be edited in the "Books" sub folder of FSXPilot home directory. If you edit, please make backups. 

Created with the Personal Edition of HelpNDoc: Easily create PDF Help documents