Hi gdenby,
I am quite new to vector grafics, or at least to grafic design.
So to step 6 I selected all as you wrote shift-click and this selected all .
So now I tried do select only the holes in step 6 (cmd-click on MAC), I clicked on every shape in the right side list to select and if no hole I clicked again to deselect. Not a fun work, and finally Affinity Designer crashed....
Yes of course I saw your attached work and so much thanks for it. But I have three more of this kind and I want to be able to do it by my own. So I am trying to understand what you have done and I know I have a lot to learn, please keep patient with me.
I keep trying...
Thanks