Hi @JohnS
Sure, if I can. We need a better understanding of @neko workflow.
A simple setup will be to create a product called SET MENU set the price at $10 and create a order tag group, with order tag prefixis Starters, Mains and Desserts. See screenshot:
The above will work great and is very simple to setup thanks to the prefix feature added to order tags. @Neko try the above and let us know if this works for you?
Or he can have a product called SET STARTER and when this is selected we can use a COMBO to add a SET MAINS and a SET DESSERT. You will then use the portions within the product to define the possible options. i.e Desserts will have Apple Pie, Fudge Cake etc.