But to basically answer you, really psyker powers do whatever the writer wants them to do, abilities that don't fit into those categories show up all the time.
And theres not really any rule saying psykers can be limited to one dicipline, its more that the psykers we do see tend to be kinda generic and dont use anything else otherwise our protagonists would just be dead. 40k lore is very stretchable as long as you have a good excuse, psykers in this case depending on their power level can kinda do anything.

























