Ok i think i figured it out, go through the steps you mentioned but ACT PART is what increases the level of the enemy, up to lvl30 i believe? But also on that sheet is a category called GAIN, it goes up to 100, thats 100% xp increase. So killing a ACT PART 30 (enemy lvl 30) , with 100 GAIN (100% xp increase) made my editor character jump from lvl 6 to lvl 27.
What exactly does Reload Stats do? I clicked it but it didnt reset my editor character to level 1... and is it possible to reset to level 1?