Oh I see, thank you.
I've just added the possibility to retrieve the name of the item user or caster, for version 1.71. It will be set through the script command that you can use to set in a variable the party's gold, level, etc. You'll just have to select "Name of the item user or caster".
During combat, using that same script command, you can already select "Name of the acting character, if the acting character is a party member". But I don't think that will work out of combat.
Finally, you could allow the player to select the target character out of all the party members.
Thank you! Best regards