Adding a key binding for scrolling pages

[jiangtianli91]

Is it possible to add a keybinding for scroll the webpage of jupyterlab up and down? Like how Ctrl + e/y or Ctrl + u/d work in vim. I just couldn't find a way to scroll the page continuously without using mouse. The j/k key and Ctrl + j/k key can only scroll discretely based on the cell which makes it impossible to see a long output of a cell without using a mouse.

[KeAWang]

This would be great!

It may be best to have it in command mode, so that ctrl+u or ctrl+d goes to the previous and the next cell directly without having to move the pointer all the way to the top or all the way to the bottom.