This script demonstrates how to do trailing sell. With this approach, given an exit signal, instead of selling directly, you just follow the price upwards (for long positions) and you sell when the price decreases by a small percentage. The order will be executed when the next bar is closed. This approach may increase the profits (slightly) in some strategies! This script can be used as a template for your own strategy. Be aware that the simulated data may produce unrealistic results.