[Freeswitch-users] Presense, FS as client

Hello I want subscribe to BLF events of several extension on remote FS server. I configured gateway with subscription as it described "Presence <https://wiki.freeswitch.org/wiki/Presence#Use_FreeSWITCH_as_a_client>" page. My FS servers is subscribed to extension same as gateway username. Is possible to define "To" header in subscription other than gateway username?