After buying a coin, I have a Sell order set at the same value, but is it possible to adjust it and set it for example just below the maximum for a certain time?

Yes, you can do that, there is a whole group of parameters “SellLevel…” in the “Sell order” tab of the strategy settings, where you can specify the delay for moving the Sell order, specify the period for price analysis and calculate the maximum on this period, and then move the Sell order above or below this maximum by the percentage you want. In a group of the same parameters you can specify the number of steps of Sell order and till what price level it should not be moved.