You can't have it all with these brokers. I have supplementary account with Forexchief broker for cases like this. When I need to have all assets in one account to trade, I use this broker, also for higher leverage and lower spreads.
If you are serious, you have to go trading house to trade. Get specialised trading platform (eg TT ) for trading futures. Be prepared to pay at least $1000 every month for all the quality, high speed, virtually zero lag things.