The orders would be server side so if you enter an order it will be working at the exchange and held on our server so if you log out of the platform the orders will continue to work at the exchange and if you got filled while not logged in you would see that fill when you did log back in.
There is one application available on our front-end, T4 Custom Strategies, that is client side. Anything done using this feature will be held on the PC.