Hi pianism,
Please try the way below.
1. Open file "CuteChat\CuteSoft_Client\CuteChat\Script\ChatUI.js"
2. Find section below
msgtext=TEXT(info1[0],info1[1]);
3. Change the info1[0] to the message you need, like
msgtext=TEXT("can you add yourself",info1[1]);
Regards,
Ken