To show different Simulink models using a GUI popup menu in MATLAB, you can create a graphical user interface (GUI) that includes a popup menu for selecting the model to open. This can be done using MATLAB App Designer to make the GUI and ‘open_system’ function for opening any model or block.
Define a callback function that will execute whenever a menu item is selected. This function's responsibility is to open the chosen Simulink model using the ‘open_system’ function. By implementing this callback function, you effectively link user selection with the desired model opening action.
For further information, refer to the documentation link below: