Log in to the service console, select the menu option "My Questions & Answers", then click on the button;
After clicking on the button, a new window titled "Question details" will open;
Click on the dropdown at the end of the prompt "Question", and you will be provided with a list of default questions that you can select from.
Choose which of the available questions you wish to supply an a required reply to, then supply your chosen reply, then click ;
The list of questions will now be updated to include the newly supplied question and answer pair;