You can instantly close all or filtered positions and cancel all or filtered pending orders directly from the Open Positions panel. This feature is available only for Slave accounts and is available in:
Cockpit→ Slaves → Open Positions, click the Action button,

and choose the desired function:
Close All Positions
Closes all currently open positions of all slaves accounts.
Close Filtered Positions
Closes only the positions that match the filters you have set in the Open Positions list (master, slave, direction, symbol,...).
Cancel All Pending
Cancels all pending orders of all slaves accounts.
Cancel Filtered Pending
Cancels only pending orders that match the selected filters you have set in the Open Positions list (master, slave, direction, symbol,...).