On the cTrader platform, click on the settings icon in the bottom left-hand corner, and select the 'QuickTrade' tab. From here, you can select if you would like 'single-click' or 'double-click' trading.
If you have the quick trade settings 'Disabled', you will have a pop-up box to confirm any trade actions.
You can also set up default SL/TP and market range settings for all order types from this window.
By default, QuickTrade is set to send Market Orders by clicking once. Configure it as you wish it to work.
In the QuickTrade Settings select Single-Click or Double-Click to configure the QuickTrade mode, or Disabled to turn the QuickTrade off.