You only need to download 1.
All of the downloads are to the same installation media. For Simulation CFD, there is only 1 media (32bit and 64bit) for all components. The rest is driven off the license generated by the serial numbers you have.
The bulk majority of our customers do not have a "Standalone" version. You should be set to Network version where you are pointing to your license server.
We do have a Knowledge Base article about switching between Standalone and Network in the even you accidentally went down that path
Correct, our Interface is the Design Study Environment.
The solver is installed automatically with the installation media. If your license file has a CFD Motion increment than you will have access to the Motion solver. If you just have SImulation CFD (the base solver) you will not have access to Motion.
Can you elaborate? There will not be a label that says "You have Motion"
After pointing to your license server, iwhen you setup a model you will automatically grab the motion solver when a motion model is setup .