I`m trying to use keyboard as much as I can, and I've found hotkeys/plugins for almost any action which I needed. However I`ve faced a problem with scrolling documents from keyboard. Whilst we have possibility to scroll by one line, this is not fast enough, mouse is much faster and to scroll I have to grab it. This is very uncomfortable since I`m trying to heavily use keyboard.
Is it possible to somehow scroll documents from the keyboard say by half page, by full page? The only thing I`ve found is IdeaVim plugin, which have such functionality, but I don`t want install the whole vim emulator for this, and besides it is not working properly (works on html files, but not works on css).