Here is a Demo on how to make File saving stuff,
anybody can use the graphics for the window junk all they want(I made them for that)
this is not a game,
just so you know:
I did use the stackit() function but I modified it to fit my needs for this project(has nothing to do with saving).
to place a blue pacman,
just use the left mouse button on the background,
to create a green one,
press the right mouse button,
to select or unselect a pac man for deleting use the right mouse button on the pacman,
after you select all the pacman people you want to delete,
press the delete button.
look at all the scripts for learning how to make this function(mainly the draw actor event for the actor called SAVE)