http://www.macroquest2.com/wiki/index.php/MQ2EQBC/bccmd channels <channel list>
Set the list of channels to receive tells from.
Have whomever has the cure clicky join a channel, like cure
/bct cure //itemnotify 21 rightmouseup
That way if you have characters with something else in that slot they do not click it. Force clicking slots with hotkeys/bc can cause client to crash if item is on cooldown.