Turn off Zygor messenge in chat window ( WoW)

[xhoabmt]

Hi, I'm a multiboxer and zygor do a great work for me with Sharing fuction , but every time my Master character share a quest to Slave char , some messenge appear on window chat

Zygor Guides Viewer : Activated guided: SHARED\....

It's so annoying because the messenge popup in 4-5 rows each quest not only one

How to turn off these notification messenges ?