There are various ways to make an order in MT5.
Double click the currency pair you want at the currency prices window, or Mouse right button - Click `New order`
or Mouse right button -Click `New order ‘on the ticked chart at the currency prices window.
Tool menu – Click New order
Click `New order` at the right mouse button on the chart
Mouse right button> Click `New order` at the Toolbox window `trade` tab.
Use shortcut < F9 >