Log in Poolin official website www.poolin.com - Sub-account manage at the top right corner of the page
Select non-BTC currency - Setting - Settle in BTC
Turn on Profit Conversation and add Now BTC Address
Note: Poolin make a settlement based on exchange rate of Binance, please refer to real time exchange rate on Binance.
BSV is inapplicable for Settle in BTC.