Scene made in Element 3D

Hey

Maybe this issue is very simple but I made a scene in element 3D only and created a camera. everything is working perfekt but i would love to add more elements in my scene like fire or smake. becouse the scene isnt tracked with 3D tracker my elements just floating and when i try to creat a null same thing happend to the null object. 

Thank you for any help you can offer.