> Play and Pause: start or stop the simulation. > Edit: edit the grid - click a square to change its state > Random: randomly generate a new field. > Step: move through 1 generation. > Export: convert your current grid to a save code. > Import: convert a save code to your grid. > Preset: select and import a pre-made pattern from the list. Number display above Export shows the number of Generations. Press Space to to turn music on or off. I'm considering adding a feature to change the "rule" of the game.