• First select your input type (Colours or Letters)
• If you have chosen 'Colours' choose a colour from the palette and then click on a square of the grid. The square will be filled in with the colour. You can now choose a new colour or click on another square.
• If you have chosen 'Letters' enter a letter and then click on a square of the grid. The square will contain the letter. You can now enter a new letter or click on another square.
• Pressing 'Fill' will fill all the squares with the current colour or letter.
• When you have finished colouring/entering text into the squares, press 'Orbit' to see the orbit of your colouring.
• Pressing 'Arrange' re-arranges the orbit to show cosets of the stabilizer.
• A square can be also be chosen using the arrow keys. Tab to the first square in the grid and then use the arrow keys to select your square. Press 'Enter' to colour it in.