Next update will first adress exports (to ensure as3, as3 with animations exports, md2 exports and awd2 are perfectly sync) among lots of other little details under the hood.
Then as said before, I will then gradually reintroduce previous features. path and path related is a big one. if you use only one aspect of it, it might look small, but there are lots of classes and ui linked/related to these. To make you happy a bit, lets just say, I have already started…
As you know we just have released 4.0 and not only it was for us a very busy past month, but if you look at the forum activity, you will see lots of people need help to get started with the latest api’s. There for, I have/had a bit less time per day to focus on Prefab.
That having said, regarding your project being too heavy for flash 10. You can of course proceed differently.
One option, very easy to do:
What if you take in prefab 2 a snapshot of you model with the camera drop down set at top. then use this snapshot as texture in Prefab 1 placed on a plane (using primitives generator). Set the plane dimensions to same size of your model or in ratio before start define your path.
Second option in case you need the Y information:
Place in your model in Prefab2 add one cube using the primitive generator and then copypaste it so it does represent/fit the bounds of each important part (or meshes) in your model where you want to have path information. You simply need to drag them to mesh positions and play with scales. Then select the cubes and merge them. Finally select the cubes merged. export as obj or awd1 (selection only). Load this model in Prefab1 to edit your path. as they are in fact representing a low res version of your model, Prefab 1 should not have problems to render it. Note here that you could project the map of case 1 on this lowres mesh using the uv editor to help you get a better sens of your environment.
I know this is not ideal. In fact that’s why I wrote this path editor in the first place, as I was tired to proceed this way. But it works and requires just few minutes of extra work.