This software is no longer maintained, you can check Keira3: a modern version of the SAI Editor inspired by this project or WoW Database Editor an IDE for TrinityCore database including smart scripts editor.
Editor for TrinityCore's SAI (SmartAI / smart_scripts) database scripting system.
http://www.trinitycore.org/ https://trinitycore.atlassian.net/wiki/spaces/tc/pages/2130108/smart+scripts