Hello @JSeoy.1 welcome to the ST Community.
The trial version of TwisterSIM has the purpose of being able to explore the main functionalities of simulator.
As you can read in the opening pop-up message you have some limitations in DEMO version.
You can use it but if you want to be able to exploit all the potential of the simulator you have to get the full version requesting the activation code (free of charge but subject to STMicroelectronics approval).
Let me know if I addressed your concerns, if so please "Select as Best" button.
