How can I add 1 more text box to a column in a list view - doing training 4.3.1 Create and Connect Enties

Good day all, I believe I am missing something simple but I cannot figure this out, I am still going through all the training modules and part of the training is to rename the text and link it, we are to have 3  – title, duration, and price.  I only had 2 title boxes and am trying to add a 3rd so I can add price.  Can someone point me in the right direction?    
1 answers

I assume that you want to edit the label of the text: price isnt it? if so , you can edit the text as like below:

If this is not what you are looking for please let me know.