Outliner Word Count

Anyone tell me how the total outliner word count works please. I have a folder with three documents in it. If I select the folder in outliner mode I see the details of the three documents. If I add the word count column that gives me an accurate word count for each document. Then if I add the total word count column, it just repeats the word count and gives exactly the same as the word count column. I was sort of expecting it to be a culmalative count of the documents after reading through the manual and forum posts. How can I find a word count for the sum of the documents in a folder? Thanks.

The total word count is the sum of a container’s word count and its subdocuments’ counts. If you load the folder’s parent in the outliner, you’ll be able to see the folder listed in the outliner and thus see its summed count.