Simulink users familiar with get_param and set_param know that every block and model in Simulink have a list of properties that can be altered.
the inpect() function opens a graphical interface to examine and edit all of these properties. This function is called using a command-line call like: inspect(get_param(gcb,'Object'));

This function adds a menu item to the right-click menu to make this graphical interface more discoverable.