This is my first script, so it's not the best. Essentially, I needed my own game to have only a single save file, so I edited the file scene and came up with this.
This script will remove the save screen selection menu and instead will show a pop up window that will say "Your game is saved" or "Your game has loaded" depending on where the scene was accessed from and it will play a sound when the window pops up. You'll have the ability to change the message, the window's dimensions and position, the duration of the window, and you can change the name of the file it will save into.
Again, this is my first script. Feedback would be helpful.