If you use limit orders you add liquidity to the market. That's why once your order is matched, you will receive a maker fee bonus.
Here's an example of the PrimeBit order book.
Swipe down to "New order" window. Choose "SELL", then choose "Limit" order type, set the "Quantity" (number of PrimeBit contracts), and activation price, which will be in our case 9097.5 (the lowest value on the sell-side in the order book) or higher. Double-check the order details and tap the "SELL" button at the bottom of the order modal.
Swipe up. The order is now visible in the "Pending Orders" tab.