Muchas gracias, también creo que lo he encontrado en este artículo y se refiere a lo que dices:
I want my liquidated position to be reinstated.
I want to point you towards a feature that might be of help. In the Account Window, under Portfolio, you will have your positions listed. You can highlight a position that you would prefer not be liquidated prior to others in the account in the event of a liquidation, by left-clicking it. Once this position is highlighted, right-click on the line. In the box which appears choose “Set Liquidate Last”. This feature allows you to mark those positions which you would prefer to hold over others. IB will try to honor those requests, but this is merely a request and we cannot guarantee that the chosen position won’t be liquidated.
Gracias a todos.