You may have built an automated campaign, started it running and now have a group of contacts to add in to this campaign funnel manually?
A: Click on the name of your campaign (which opens it up) and then scroll down your page and click on the Manage Contacts button.
You now have the options to add in your contacts including adding groups. So add in your group by typing in the name of the group in the search box and it will show in the box below. Then you need to click on that group name and click on 'Include this group' then click the red Save button.
After adding your group in the campaign and selecting the red save button, you need to then also click on the blue save button which is the main save button for the entire page. You now have selected your groups and added it to your automated campaign.
And that is all there is to it. Happy campaigning.