video1.0<iframe src="https://www.loom.com/embed/f630804ef05540adad124cf2327f6c68" frameborder="0" width="1920" height="1440" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>14401920Loomhttps://www.loom.com14401920https://cdn.loom.com/sessions/thumbnails/f630804ef05540adad124cf2327f6c68-1709572856294.gif327.662In this video, I demonstrate how to use custom factors to add a dummy factor used to create a label column in the DOE design. I provide an example using two buffers, buffer A and buffer B, and show how to add a specified amount of each buffer based on the buffer level. I explain how to calculate and simulate the design, and highlight the columns for buffer level, buffer A, and buffer B. I also discuss the need to include a column specifying whether no buffer was added, buffer A was added, or buffer B was added. No action is requested from the viewers.