Just wanted to share a discovery that made me really happy! I had this scene in Maya in which I had imported a camera+target from C4D. everythg gets humongous, so I made an empty group, put everythg inside it and resized it to 0.01. Everythg working perfectly, I noticed that I hadto adjust the camera movement. So I opened the original file in C4D, made the tweaks I had to and exported another fbx (without changing the names of the cam and target).
My surprise was on Maya, when I just imported the new fbx scene and ta-daaa ... it replaced the old one!!! beautiful! working perfectly =D
Ah! Just do not forget to smooth the curves on the graph editor... they're stepped by default! ;)