Not available in PCT.  Scroll down to Rates per Form Billing. 

This has a few suggestions in the Idea Exchange where you submit product improvement - Here are a few.

With 9 votes it refers to what ProSeries has. 

With 4 votes if refers to what Lacerte has.

With 0 votes it refers to Lacerte and QuickBooks.

Pick you favorite & vote for it OR vote for each of them OR do your own suggestion using this article.