I was recently in Switzerland. When I first turned
on the done (Spark) I got a message saying my
settings were changed as I was in a new country. I don’t remember any changes other than my RTH height setting. Be aware of most countries in Europe require liability insurance to fly. Switzerland requires 1,000,000 in liability if you are flying a drone over 500 grams (Spark weighs 300 grams). (Google drone laws in Europe)