Thanks Touteptite, really appreciate you taking the time to look into it and reply. I wish I could say it was resolved, but it's not. :( What I'm trying to do is this: Create a Category called Art Prints. Under Art Prints I created several grouped products, say Group 1, 2 and 3, then each of those has multiple types of different prints in it. When looking at the Shop, I want it to just show the Grouped Products, ie, Group 1, 2 and 3, without showing each individual product in each group on the same page. I've tried creating sub categories and putting each Grouped Product in its own sub category as you suggested but it still shows every single product, grouped and individual, on the Shop page, all jumbled up together. It makes no sense to me - what's the point in grouping them if you're just going to mix it all up and ignore the groups anyway?
I will go to the Adroa theme link you provided to hopefully sort out the weird menu, thank you!!!!
Once again, really appreciate the time you've taken to help me try to sort it out. :)