Technically, there is no limit the maximum amount of money that you can trade with regarding the Traide Ringer or other forex software that we provide. That being said, you may want to consider spreading your money in different forex brokerage trading accounts and with different brokers to mitigate the risk of security breaches, company failures, and other unforeseen events.
It would be good to check with your broker and ask what is the maximum you can have with them. Do your due diligence online and search Google for reviews. It is your money, you had to earn it, so take it seriously and do all you can to protect it.