@ElsieD, you asked about accessories. Here's what I bought (sorry these are all US links)
Multiple racks (I bought 3 of these, which fit in the grooves, recommended by Palo and Jo).
https://forums.egullet.org/p2308023
Perforated Silpat (I bought 5 of these, recommended by Jo)
One can cook anything on them (heat to 500°F, -40°C to 260°C). Clean with soapy water. They absolutely prevent anything from falling through the spaces on the rack.
https://forums.egullet.org/topic/p2307121
Fruit Leather Silicone Dehydrator Sheets, with an edge. Useful for cranberries too.
https://www.amazon.com/gp/product/B08NVRVVPF/
Here's the eG topic for Dehydrating Foodstuffs with the APO. You'll see the components mentioned above.
https://forums.egullet.org/p2309118
Jo has a baking steel, which I don't have yet
https://www.mcmaster.com/9745K79-9745K19/
I am grumpy about no self steam clean though
https://forums.egullet.org/p2307288
