Sally I have never tried tapestry but wonder if it might be like cross stitch, where the embroidery silks are 8 threads together, but you extract just 1, 2 or 3 depending on the instructions?
I saw your posting a few days ago & hoped someone in the know would have replied. Maybe try posting your question on the cross stitch thread, possibly someone there might know. Failing that You Tube perhaps?
Good Luck
“We start school too early in the UK!”

