The total package cannot handle more than 2.4A. That is to say you can't have more than 5 outputs pulling 0.5A .
I don't think that it will load share perfectly but close. I believe two outputs should not drive 1.0A but three outputs will handle 1.2A? Or two outputs can handle 0.9A. This is just a feeling, no proof. If you load share do not mix different parts. Share with in the same part!