Yes Pancake swap has limit orders however this is an alternative interface which you could use to swap those bHBD to BUSD by placing a limit order.
With the markets swinging side ways, you can pretty much earn a few dollars (depending on the volume of your trade) and keep swapping BUSD - bHBD. Apart from providing liquidity that is.
However there is one caveat though .. since BUSD would not be traded on major exchanges soon , you may consider using other stable coins instead. Just my 2 cents ... cheers all and have a brilliant Sunday !