Execute different method set in inspector

Hello guys, I am making a button, and I want the button to be able to execute a different functions for different instances so right now whenever the player clicks the button, the Pressed() method is called, and in that method, I want to set some variables and then also set another function that is especified in the inspector, and the only way I know how to call especific functions is througt events, but I dont want to call a function througt an event, but trhough script How can this be done?

     public void Pressed()
     {
         isOn = true;

 
         //public function set in inspector function();           
 
     }
 
 

if I put something like public Button.ButtonClickedEvent function;

it would I can select a function, but I only want to call it on the Pressed() and not on a onclick event.