"use keystrokes to scroll on alternate screen" is an option in gnome-terminal profile preferences. It seems that the person who wrote the help doesn't know either because he skipped that option in the gnome-terminal manual. What is going on? That happens at least in Ubuntu-Natty, but I doubt they have fixed that.
Answer: Hahaha.. It should be "enable the use of mouse scroll on alternate screen (an alternate screen is a screen superimposed when you read man pages for example)" and not “use keystrokes to scroll on alternate screen” . Hahaha. the meaning is the opposite. What is going on with quality control in UBuntu? They are ruining the prestige of Linux.
Who will correct that??
11 Answer
Robert solved the problem (as seen in his question):
Hahaha.. It should be "enable the use of mouse scroll on alternate screen (an alternate screen is a screen superimposed when you read man pages for example)" and not “use keystrokes to scroll on alternate screen” . Hahaha. the meaning is the opposite. What is going on with quality control in UBuntu? They are ruining the prestige of Linux.