Hi I am in a ITE class at NOVA and we have had some assignments regarding the tabs on the Excel sheets to grouped. I've looked numerous times on google and Youtube, and they all say the same thing which is to hold Ctrl and then use the arrow keys to group them. But when I do that, I don't neccesarily group them and then i just right click the sheet tabs and then it says its grouped, but it doesn't feel like I am doing it right? Can someone please tell me how to properly group them?

BTW I have Excel 2013