2 Ways i would do it.. Either
Send the SE steem back to my steem account then to binance and swap to hive via bnb and then send the hive to your hive account.

Or if you don't have access to binance

Exchange the SE steem to DEC then pull the dec into your Splinterlands account. Then send from your Splinterlands account to Hive engine and change back to hive.

Maybe someone knows another way?