To know the exact syntaxes, you should open the IanniX Helper window (? button in toolbar) and scroll down. You’ll see all the messages generated by the GUI to produce an action. So while this window is opened, add a trigger and you’ll see that you should send in OSC: /iannix/add trigger |ID or 'auto'|
then /iannix/setPos |ID or 'current'| |x| |y| |z|
If you’re using Max, you can immediatly copy to clipboard the needed structure to send OSC from Max.