Run a Simulink-Model from other Model, simulate it and close it

Hi everyone,

I've got a challenging problem. I have two models, "Model_1" and "Model_2". I want to call from "Model_1" (through a Subsystem) the "Model_2" simulate it and close it (see attached Image). All necessary m-files for the model_2 are already defined in the Call-Back "PreLoadfcn" in "Model_2".

After i click on the Subsystem "Call Modle_2" the Model_2 opens and the functions run automatically (see attached Image 2). But I'm then forced to manually press the button to start the simulation and close Model_2.

Ive tried to find a way around this with callback but it doesnt seem to work :( Can someone please advise whether I can automate this process ? Finally, to make my Programm more efficient, I would like to call the GUI after the Model2 is closed. How is this done?

I am thankful for every help Jay