Is it possible to reset the research somehow? (StarCraft 2: Legacy of the Void)

-Lord-Ema-
No, it seems like a trainer is possible, but I will not say for sure.

So the Protoss do not have research, but the subsystems of the ship. And the total number of crystals does not change. You can activate any bonus for any mission from the available number. Also, then you change to others and that's it.

Probably a question about the Terrans, their research cannot be reset legally

the evolution of the zerg, too, can not be changed later after completing the quest?
what if you don't pass them but save