Checking the tutorial in the Offline version
tutorial
Tutorial can be launched either from the demo dialog or from menu Help/Tutorial:
Tutorial consists of several parts. Click on the button you would like to learn about.
Then just read the texts and follow the instruction on the screen. For each step you will be asked to press the "Enter" or observe the small animations. Once the part is finished you are taken back to the tutorial dialog and you can choose different part.