Copy a motion path from an object and paste it onto another that already has a motion path(s).

Hi all,

My name is Duke, basically a newbie, and I have been using Articulate 360 for a couple of weeks now. Here is what I'm trying to do:

I have created Object-A, Object-B and Objec-C, and assigned three different motion path on each object i.e. Path-1 for Object-A, Path-2 for Object-B and Path-3 for Object-C.

Now I also want Object-B to have Path-1 and Path-3 assigned to it as well. Thus Object-B will have 3 paths. I can't seem to just click on the path, copy and paste it on the object. Using the "Animation Painter" will only replace not add to it. And I can't just add a new motion path to Object-B as it wouldnt be identical to the paths that I have already assigned to other objects and I want it to move exactly the same way as the other two objects.

The only way I know is to create 3 paths on Object-B first then use the "Animation Painter" to copy and paste on the paths on Object-A and Object-C then delete the paths I don't need on each object. However, it wouldn't work when I need to see how far other A and C move first then I can design B. 

Can anyone give me some advice? I'm actually attending a training workshop here in Bangkok tomorrow. If noone can help me here then I hope to find a solution myself tomorrow. Thanks in advance and sorry for the long message.