I think a bunch of OMS systems can do this. I don't have access to Bloomberg anymore but I believe they can an OMS system that can use multiple brokers. Bloomberg or Charles River. What's your budget?
He needs an OMS/ems solution. Most of those tools cost about $500/mo on the low end. Silexxx is a decent retail variant.
can i use api to connect to tt and send orders to all platform so that I do not need to code for each platform independently ?
Does multicharts have API interface so that I only need to write once and send orders to all platform?