Basic arrow keys and page up/down usage in intellij on mac

Question

What are the equivalent keys for page up/ page down in intellij on os x? Option arrow up/down is not doing anything AFAICT.

Answer 1

Go to Preferences | Keymap and assign any hotkey you like to Move Up/Down and Scroll:

Answer 2

Fn + Up/Down Arrow key do Page up and Page down respectively in IntelliJ running on OS X. This is one of the standard ways of doing Page Up/Page Down in Mac apart from Option Up and Down arrow key that you mentioned.

Answer 3

It was annoying for me to find out which keys to get the cursor or caret up or down quickly or may be to the end or beginning of current line till I figured out the following shortcuts that might help:

Fn+Left arrow or Ctrl+A move the cursor to the end of current line.

Fn+Right arrow or Ctrl+E move the cursor to the beginning of current line.

Fn+Up arrow or Fn+Cmd+Left move the cursor to the beginning of the file.

Fn+Down arrow or Fn+Cmd+Right move the cursor to the end of the file.