The first weft pass detailed above is shown on this chart. The white dots mark the white warps that are selected to float. All the rows that are marked with green dots on the chart involve the same sequence of moves, that is, selecting the white warps from shed 2 that are going to float, adding them to all the warps in shed 1 and passing the weft from right to left. I have only marked the warps with white dots in the first couple of weft passes. It is up to you to mark the others!