A DXtrade copier places the trades from one source on your DXtrade accounts, so you don't repeat each order by hand. Brokers and prop firms run DXtrade under their own web address, which is why Copygram asks for your broker's DXtrade domain when you connect.
In Copygram, DXtrade is a receiver. A DXtrade account can take trades in a Room, but it can't be the Room's source: Copygram can't copy from a DXtrade account to another account. The source is an MT4, MT5, Tradovate, NinjaTrader or TradeLocker account, a TradingView alert, a Telegram channel or group, or a trade you place yourself with Live Chart trading.
Copygram links the source and your DXtrade accounts in a Room and runs it in the cloud, without an EA, a VPS or a MetaTrader bridge. Each DXtrade account keeps its own balance and positions and follows its own lot size, symbol mapping and stop-loss rules.