disable antivirus engine with managed forticlient By EMS

HI .. I have EMS version 6.0 with forticlient versions 5.6.6 or 6.  I have some users with administrator rights and they must can disable the AV sometimes without lost EMS connection, Is it possible?  I have disconnected my client from EMS but I can't, all options say me "administer by EMS" and I can't.

Please your help.

Thanks

Vanessa