Attempting to Add Data to Cells in Newly Added Field in Attribute Table ArcMap10.2

Discussion created by ajshipley on May 23, 2014
Latest reply on May 23, 2014 by ajshipley
I am trying to add data to an attribute table for a polygon feature shapefile in ArcMap 10.2 by following the directions here: http://resources.arcgis.com/en/help/main/10.2/index.html#/Understanding_how_to_edit_values_in_a_table/005s00000012000000/

I added a new field to the table and I've tried the copy and paste method suggested by the link above to add the data to the new field, but when I right click the top cell of the new field column the only option I get is "copy" and "cut, paste, and delete" options are greyed out.  I'm not sure what I'm doing wrong, assuming that I am doing something wrong.  I have also tried using the Editor tool to edit the shapefile to add the data. 

Any help would be greatly appreciated!