Ok, first of all you need to know how to make a program so...
Frist step is to press program
Now press twice right so that you are at the new tab
Next hit enter and enter your program name
Now hit enter and you should be in the editor
YAY! You made a program!
Now some stuff about the editor:
To insert some stuff you have to hit [2ND] and then [DEL].
To exit the editor hit [2ND] and then [MODE].
To start a new line hit [ENTER].
For letters hit [ALPHA] and then the letter key.
For alpha-lock hit [2ND] and then [ALPHA]. You exit it by hitting [ALPHA]
Now lets go to the next step.