Season chicken with salt, pepper, and cumin. Set pressure cooker to "sear", add butter, and press "start/stop". When melted, add chicken and cook, about 3 minutes per side. Add lemon juice, chicken stock, green olives, and red onions, and bring to a simmer.
Close and lock lid, set pressure cooker to "poultry", adjust time to 10 minutes, then press "start/stop". When done, quick release and make sure all pressure is released before opening lid. Carefully open lid and check seasoning. Add salt and pepper, if needed and serve.
