Action: Apply Tag

If you would like to assign a new tag(s) to the contact who is at this point in the funnel.

What you want to do, is add  Apply Tag to the funnel, by dragging it from the right-hand side over to the list of steps. You can put it anywhere in the funnel.

Select the Apply Tag action, you will be presented with some setting options. 

• Apply These Tags: - Enter as many tags as you like using a comma to separate them. 

Make sure to hit save after completing the settings.