Each option has 3 'vars' containing information about the entity in question. I dont actually know what these vars contain for RS2Objects, but for NPCs they contain the NPCs world index (and some other things), which can be used to verify that this is the correct option, given you have a reference to the NPC. Something similar should be doable with objects. Maybe one of the vars contains coordinates?
I'd suggest you go ingame with a script that prints the vars for each option, in order to see what's in there exactly