Rearrange parts, assemblies in the FeatureManager Design Tree

I have an assembly with many parts (over 200).  Throughout the tree I have the same parts (gaskets, etc) and they are randomly distributed depending on how I created my assembly model.  Id like to have an easy to way to sort or group common parts.  Is there a way to do this?  I am using Solidworks 2012.

Thanks,

-Nick

SolidworksAssemblies