Send actor message to actor (actor from dialog item).
I know that works. (Did it the other day) However note that you have to wait at least 2 secs between sending actor messages and creation of the item and it may or may not work. It's really random, my advice is to leave it as it is.
Thanks for your kind reply, but couldn't solve this problem.
I tried to send both 'attach' and 'create' method after 3 seconds wait to create the axe model actor.
But 'create' message does nothing, and 'attach' made an error(It seemed like - Can't disassemble the actor from the reference name [actor ID] : This maybe wrong because I translated an error written in Korean).
Actor - Send message "Attach GarroshAxe AMFilterWeaponRight" to actor (Actor for [Dialog] Character Selection.Hero Unit Model[(Triggering player)]) << This is what made actor error