You can associate each strategy with a group name. For each group, you can then assign a Take Profit Limit and a Stop Loss Limit. When the profit/loss of all strategies of a group breaches the group’s Stop Loss Limit, all such strategies will be automatically closed immediately.
Alternatively, when all strategies of a group breaches the group’s Take Profit Limit, all such strategies will be gradually closed in a dozen seconds (to ensure better closing prices).