Such as an autoswitching URL for a certain algorithm. Right now I don't want to set a min price, but would like my miner to jump between EU and US depending on which is most profitable.
There is no need to jump between USA and EU stratum servers if your are a miner (seller). Please note that you're paid at the current globally weighted average price - in other words - you're paid the same regardless on which location (stratum server/proxy) you're connected. Just make sure to connect your miner to the closest stratum/proxy server to get best efficiency (check also this FAQ: https://www.nicehash.com/index.jsp?p=faq#faqs13) and use closest location as your primary pool and other location as your secondary (backup) pool in your miner's configuration.
Kind regards,
NiceHash