This is actually a massive improvement on the variant system with Virtuemart and as you can see from the video clip below you can easily achieve setting up a complex product with "multiple variants" in ten minutes or so.

A few things to remember:

  1. Set up your Custom Field in VM before you start
  2. Have your images all ready for each "child product" so you can easily display colour variants for instance as the customer browses your options.
  3. SAVE as you go down through the multi variants otherwise you will keep having to start again!

Watch the below video in 1080P High quality, just pause it as you get to each section. You can see the actual product relating to this video if you click the below link which goes to one of our clients who sells Topiary Balls and Garden Planters