Step 1:
You must have these files on your calc.
Then, at TI-OS home screen, press mylevel().
To make a new level, just use the 'copy function' of Var-Link.
So you should go to this screen.
At the right, you can see the list of the graphs.
At the top-right, you can see the selected graph (Here 'Null' graph).
You can change it by using + / -
You can see also a cursor at the top-left : press Left / right / up / down to move it
We will start to work.
First, we will create a link between a graph and a test.
Press F1 to enter the menu.
To choose the graph, you can use Up / down or press a short key : A, B, C
Here, press 'B' then 'ENTER'.
Press 'B', not 'b' !
To select the test, you can also use up / down or a short key.
Here press 'C' and ENTER.
Then you will return to this screen.
At a corner, press F5 to memorise the coordinates.
Then press right, right, right, right, right, right.
And now validate by 'B'.
Instead of use 'B', you can use '+' / '-' to select the graph in the list,
and press ENTER to put it at the screen.
Press SPACE to change of mode : graph / test.
The list has also changed.
Then go at the cursor position and press F3 :
You have redefined the starting-point !
Now, press F2 to test the level .
You play at Fer3c with your level !
Press [2nd] or [Esc] to quit and return editing.
Press Space to return to Graph mode.
At a corner, press F5 move to the 2nd corner and press I.
The item-powers have appeared.
But there are no test !
You can't take them, there are just like background !
Press SPACE to go to test-mode.
At the same corner, press F5, got to the 2nd corner and press 'D'
or select the test with '+' / '-' and press ENTER.
Now, the item-powers can be taken !.
Also, move to a corner and press 'N' to put the end. (Or use the list !)
You can play your level with 'F2'.