How can i make my own hysteresis cycle?

Hello,

I need a help to build my own hysteresis cycle for my transformer, because i dont see even a video how to implement it.

i check tons of vidoes, but no. i try to make it by add my data points to powergui but i dont know how to tell to the model to use mine hysteresis.

after i put my data in powergui block, OFC i get errors....

so can some1 send me a video or give me a advice How i can put my own hysteresis in my model.

Thanks you alot!