I dont understand what broker really does and I haven't heared about that thing in bitcoins. But when it comes to fiat, maybe a forex trader pro will work. What I do in trading bitcoins is that I buy dumped coins then I sell it when the price doubles or triple. As simple as that, no fees from brokers. But, Id love to have a bitcoin broker as it increases the chance to make my bitcoin increase.
its like the exchanges here in crypto. there are just no pipspread here but trading fees.
i don't really get why you would do it on forex brokers like the etoro or what but if you are into forex, you'd rather be in to the usual market like the EUR/USD or the Cable than having bitcoin pairs. the indicators of MT4 are meant for these markets not with BTC.