The Long / Short position tool lets you plan a trade visually before you take it. It draws a box showing your entry, your target, and your stop, with the risk and reward laid out. It is a planning tool on the chart, separate from actually placing an order.
Setting it up
Double-click the tool to open its settings: account size, lot size, risk (as a percent or a cash amount), entry, leverage, and your profit and stop levels (in ticks or price). It works out quantity and amount from the contract's point value, so the numbers reflect the real contract.
Built-in simulation
The tool can simulate the outcome. It shades the area price travels through, draws a line to whichever you hit first (target or stop), and flips the label to a closed profit or loss: green if the target came first, red if the stop did. A quick way to sanity-check a trade idea before committing.