@robinbobbin: ActorX importer was designed for UE games and umodel, where in most cases you can export multiple animations as sets, i.e. when single psa contains all exported animations. It's not a trivial task to modify ActorX importer to work with multiple psa loaded simultaneously, while keeping original functionality the same. It's probably better to use other existing solutions, like psk/psa importer plugins for blender, for more flexibility in automation process when working with separate psa.
the game I imported from so happens to have PSAs with singlet animations inside.
I saw the loaded animations list & thought I should be able to load multi PSAs simultaneously.