Augmented Reality for UE4

Hi ,

I’m trying the (wonderful) demo version and i’m wondering if i can create a new marker that refers to a new object. I tried successfully only with the marker but i can’t find any ‘link’ to let the object communicate with it. Do i have to buy the plugin to control it via c++?
In other words, where can i find the option - link Hiro 2 - to Object 2?

Keep it up and thanks,

Tarek