Pending Order – An order placed in advance to open a position when price reaches a specified level. MT4 supports 4 types: BuyLimit, SellLimit (limit orders) and BuyStop, SellStop (stop orders). MT5 supports those 4 plus Stop Limit orders (BuyStopLimit, SellStopLimit). The Terminal’s Order window lets you set pending orders with entry price and optional expiration. Pending orders appear in the Trade tab until triggered or canceled.