Can I use the same sound cue and play it on multiple points at one time instead of having to individually add them to say each fire torch ?
If your game has torches, you could create a torch object (subclass from actor). Inside this object add the fire particle system, sound, light, etc. This way, when you place a torch in the scene it already has the necessary functionality.
If you just want to play sounds at different locations, there is a node called “Play sound at location”. Consider using that.