Do you mean as a named folder in the chor? or do you mean animate the cps? (as a named group in the model).
If you mean folder in the chor, I have found that I have to select the individual models in the folder (with ctrl or shift option) and then move, rotate them together as a "group" - But I am using xp pro - so don't know if there is an issue with vista.
I am trying to create the nucleus of an atom with protons and electrons. Each proton and electron is an individual model. I put them all together in a cluster. Then I want to rotate the entire cluster together. The next step will be to break off individual alpha particles. (2 protons and 2 neutrons) However, I don't get that far because the problem comes after I create the cluster of neutrons and protons and select the entire cluster in chor mode to create a group and give it a name. I can rotate the entire group with the rotate manipulator, but no keyframes are created. I tried what you suggested of selecting the individual models in the Project Workspace using control button (shift select only worked for a few of them and I have about 50 to select.) However, even though they all seem to be selected in the Project Workspace in the chor window only the last one is shown to be selected. Then when I use the rotate manipulator to rotate it, this does create keyframes for all of them. However, instead of rotating as a cluster, as I need to represent the nucleus, they each spin on their own axis individually. Apparently there is no way to create a named group of models and rotate them as a group. Any suggestions?