I have noticed this has been asked for before but has been archived so can no longer be voted on.
Frankly I am surprised this isn't already a feature. Can you add in the capability of saving iMates within iFeatures please. It is incredibly frustrating having to create iMates one at a time when you could have dozens or even hundreds of the same features in a single assembly and this simple addition could save hours of design work.
iMates is such a good tool but it is lacking in some areas