I run different EAs on different accounts with different brokers. Each EA is attached to multiple currency pair charts for each account on a VPS. I want to have the possibility to send a command from my iPhone to disable/enable auto trading of one or more specific currency pair charts, which are opened on these accounts. For example, if I send "disabled EURUSD", all EURUSD charts on these accounts shall be suspended from auto trading. Hopefully, someone finds it easy to be done.