"Sheet Adder" was created to allow users to count the number of sheets on the Manual Cards (i.e. sheet 1 of 1 if only one Card).
Sheet Adder is included in the internal document number but it can be removed from the Project Configuration page (Project Menu > Set Up > Project Configuration). Under the "Main" tab, expand the "Other Settings" section and set the "Display sheet adder for manual cards" value to No.
