in addition to the Function button accessing certain parameters, entering Grid Mode also has a large effect on parameters. This confused me about learning the Octatrack. Grid Mode on the Octatrack is simply pressing the red Record button. This makes a huge different on what parameters and edit screens are available and recognizing when you must be in Grid Mode or not is important. If the RYTM is the same, then get used to looking at the red Record button LED a lot just to make sure what mode you are in.