This turned out to be much easier than I expected.
Here is the text for my first tutorial.
It is the contents of the file that contains text that appears in the instructions window.
Follow the instructions from the heading CREATING YOUR OWN TUTORIALS onwards
TUTORIAL
LoadProject Empty.gpr
LoadWorld media/worlds/empty.wld
TutorialName Tutorials - Creating Your Own Tutorial
TutorialText
CREATING YOUR OWN TUTORIALS
This tutorial will show you how to create and set up your own tutorials for inclusion into the game core startup tutorial menu.
Press the NEXT button below to continue.
[newpage]
CREATE AN EMPTY PROJECT
Step 1 is to create a project to hold all the files for your tutorial.
From what I can see, your tutorial must have the files that any other project needs.
So
1) Open the Game Core Editor
2) Select Create New Project
3) Select Empty Project
3) In destination directory navigate to the tutorials directory in the main Game Core directory
It will probably be C:\Program Files\GameCore 2.0 Beta 1\editor\tutorials\
4) Create a new folder there and give it the desired name for your tutorial
5) Say OK.
6) Don't forget to save the world file.
You now have a folder ready for the tutorial documentation and any other resources your tutorial will need.
Press the NEXT button below to continue.
[newpage]
CREATING THE TUTORIAL TEXT
Use windows explorer and navigate to the tutorials folder.
You will need to copy one of the .tut files from the other tutorials into your own tutorial folder
Alternatively you could write your own from scratch. Its just a text file so notepad will do.
The basic structure is
well open one and compare it with the tutorial. You will get the idea
Press the NEXT button below to continue.
[newpage]
EDIT THE gameeditor.cfg FILE
Again, its probably located at
C:\Program Files\GameCore 2.0 Beta 1\editor
and it also is a text file.
Add and entry to the tutorials list for your tutorial as they have.
You will understand when you see it
Actuall, this is not necessary as it works without it.
I don't understand why the entries are there, but I added it anyway.
voilla, if you now close and restart Gamecore you will find your tutorial and it works
[end]
You have probably beaten me in working it out but here it is anyway.
PS I forgot a crucial piece in the instructions
You need to alter the first 3 lines of the code above according to the file names of your tutorial
and the fourth line is the title that appears in the tutorials menu