We've upgraded our editor for Custom Multiple Choice Questions in order to make it more consistent with layouts throughout our platform while providing some needed improvements that were based on the feedback that we received. Now, you can paste code snippets and add images by simply copying and pasting them into the editor.
If you wish to try out the new editor, then you can do that by following this link. You can also read more about Custom tasks in our article.
If you have any feedback, feel free to contact us at support@codility.com.