I need to manually set the order of my collections list on my website (https://www.dteafrica.co.za/collections). I can manually set the order of the products in the collections, but for the collections I'm only given options like 'A-Z', 'Z-A', 'New to Old' etc. I need a manual option, as my 'Fresh Produce' category is by far my most popular, but is quite far down the list. I also don't want to do something that looks unprofessional like calling it "AAA Fresh Produce", and I want the rest to be 'A-Z' to make navigation easy for other collections.
EDIT: I'm using the Venture theme
If the solution requires coding, please post step-by-step instructions if possible.