hello everyone i'm french i will try to be as clear as possible !!! Here is my home page With my 4 thumbnails collections
When I click on "Pilot equipment" I have all my products on one page
And I would like to create several thumbnails like on my home page
they would be thumbnails that would lead to the different types of products within that collection.
if someone could help me it would be great
What you are trying to achieve is called 'Nested collections' it is not something that Shopify supports natively so you either need to make some code modifications or use an app.
Here's a couple of articles that take you through how to modify your code:
Here's an app, there are a number that might meet your needs this is just the first one I came across https://apps.shopify.com/uncomplicated-categories