You can certainly do it easily enough with styles. Format a snippet of code the way you want it to appear (indentation, font face, font size, etc.) and select it. Right-click and from the drop-down that appears select Styles, then Save Selection As a New Quick Style.
Give it a name and click on Modify…
Make sure this style is available to all documents by clicking on New documents based on this template.
Now you can add a shortcut to the style. Click on the Format button at the bottom and select Shortcut Key.
Select a combination of keys. In this case I chose Shift+Ctrl+Alt+C (which is currently unassigned).
Click on the Assign button to assign the shortcut to those keys. Now whenever you enter a code snippet, select it and press Shift+Ctrl+Alt+C.