Tried using Acrobat Pro CC to edit an existing PDF form but it appears the ability to create a form from an existing PDF form like in Acrobat Pro X & XI is no longer available. In addition, I cannot edit the properties of text fields that have variables representing data in a data base anymore.
Here is the wayI used to accomplish this in the older version. In addition, you used to be able to right-click on the text field and select properties. This ability does not appear in CC. See images in order.