Pending MA Buy limit & Sell Limit Script

Can anybody help me code a Buy Limit/Sell Limit script based on MA and using a hotkey? Such that when price (candle) close above the MA, I will press the hotkey and a pending order (buy limit) is triggered on the MA price. Also, when price (candle) close below the MA and I press the hotkey a pending order (sell limit) is triggered on the MA price. This will save us the trouble of manually setting those pending orders(buy limit/sell limit) on the MA price level. Thank you for your help!

P.S. You can add an alert (wav file) such that when trade is triggered on the pending order, a sound alert will also trigger. Thank you.