Keypad what does what?

I just bought a '90 Maxima and I found the directions on how to program the key pad on the doors. Now I need to know how it works. What buttons do what? I see one that says win is that the winodw? etc.

Thx!

After you punch your code in it will unlock doors and then when you hit the window button it will open up two front windows and sunroof but will not close them. It pops trunk also. I haven't used mine in a while