Someone was trying marking and got as far as having all her pieces disappear when she entered marker mode. I created a video to explain the process to her. It covers:

• Defining a marker piece.
• Displaying the Marker Area.
• Entering Marker Mode.
• Naming Layers for each size.
• Setting each sizes cut ratio Cut Ratio.
• Creating pieces with the Cut Ratio command.
• Arranging pieces.