How to 'scrolling capture'?

[ppppppppppkim]

When trying to use it, it only take a simple screen.
My solution was to extend the page (de-zoom using ctrl scroll) and afterwards taking a simple screen to afterwards cut it, but I'm almost certain there's a way to make use of the scrolling capture feature. My question is how?

[kripcision]

i found holding the mouse still after you press the capture hotkey lets you scroll, then move the mouse and it stops. however some apps such as the steam webbrowser wont let you scroll capture, i had to copy the steam webpages (such as a guide) and put them in chrome for me to scroll capture steam guides.