Locations on Editing Areas
Pets - Petbadge.lua - This file needs to be edited both client and server (separately as it has specifics exclusive to both server and client side). Clone a pet in Seledit or Rody's Angelica Editor (much easier in this editor but it's subscription based).
Boss AI connection - View in Seledit (elements editor) under "common_strategy"
For example: The world boss Aughorn Champion uses ai9 (server side)
Lottery Items - Needs to be edited via lottery.lua and client side (elements).