YOu can do /BCT which is a TELL to one character or group channel a /BCA which is to everyone on the EQBC server except YOU, a /BCAA which is everyone on the EQBC server INCLUDING you.
If you want to tell you mage to cast a spell, the syntax would be /BCT Magename //cast spell_gem#. So if you wanted spell gem 5 cast with Madmage your mage, it would be /BCT madmage //cast 5
Let say you made a group for all your pet classes called petsRus, you could use //BCT petsRus //cast 5 that way everyone that is in that channel would do that command. You can do the same with Healers tanks excetera. That allows you to not have to change your EQBC commands to who they are going to. Be advised that character can only be in ONE channel group at a time.
Lets say you wanted to activate an AA on your monk who is named studly, and the AA had the number of 4432. you would issue this command /BCT studly //alt act 4432
you could do the same with a warrior named Fred who wanted to use an item that had an item number of 69384, you would issue this command /BCT fred //casting 69384 item
Let say you wanted everyone one but you to hail your target. the following commands would be used /BCA //assist YOURNAMEHERE this would be followed by /BCA //hail.
Lets say you wanted to say the key word of READY at the HA npc to zone into a zone, all the party had already targeted the npc. you would use /BCAA //say ready
the combination of EQ socials and EQBC is very powerful in controlling your group.
Hope this helps.