alt-shift-up alt-shift-down multi cursor has worked in the past but doesn't atm.
I don't know what could have caused it.

In keymappings I see these keybindings are bound to 'native!'.
I don't know how to override 'native!' with this plugin.
Also, I think overriding shouldn't be necessary in normal scenarios as it has worked in the past.

I tried this keymaps.cson but it didn't change the behaviour.

'atom-text-editor':
'alt-shift-down': 'Intellij Idea Keymap'
'alt-shift-up': 'Intellij Idea Keymap'

When I select some word and press Shift-Del Atom remove whole line.

Some shortcuts should require the editor pane to work:

• Find file
• Show/hide/focus tree view
• Command palette
• Project find

In short, the atom-text-editor:not([mini]) is sometimes too restrictive

There was an issue with atom that is already fixed: atom/atom-keymap#35
However, if you turn the intellij-idea-keymap plugin on then the right alt stops working again.

I'm just curious if you ever attempted or you know of a similar mapping or plugin for "Notepad++"?

These shortcuts may already be the default ones on Mac (cmd-w, cmd-,), but definitely not on Windows/Linux

After activation the plugin go-to-line doesn't work and no way how to jump in document.

Unable to download https://www.atom.io/api/packages/intellij-idea-keymap/versions/0.2.2/tarball: 503

There are differences in how the Ctrl+w command works in IntelliJ and how it works with the intellij-idea-keymap.

1. Command Ctrl+w in intelliJ selects the word/code or a block of words or code at caret. The selection happens in both directions, right and left. But when using the Ctrl+w keybinding with the intellij-idea-keymap, the selection happens only in right direction. It's almost the same as Shift+Right Arrow Key, just that it will select one letter with every press, instead of one word.

2. Although the command selects one whole word with every click but in IntelliJ this command could select whole blocks of text and code in few presses, not just one word at a time.

Example:
When the command is used three times at one place (just before "Ut enim"), by holding ctrl and pressing w for three times, following were the selections:

Atom:

IntelliJ:

'Alt-up' is right now similar to 'cmd-shift-up' and 'alt-shift-up' the same goes for 'Alt-down'

I followed the installation instructions:

apm install intellij-idea-keymap
Installing intellij-idea-keymap to /Users/oskar/.atom/packages ✓

Now what? Shortcuts seems to be the same as before..

➜ ~ nvm install v0.12.7

################################################################## 100.0%

Now using node v0.12.7 (npm v2.11.3)
➜ ~ sudo apm install intellij-idea-keymap
Password:
Installing intellij-idea-keymap to /Users/qk/.atom/packages
gyp info it worked if it ends with ok
gyp info using [email protected]
gyp info using [email protected] | darwin | x64
gyp http GET https://atom.io/download/atom-shell/v0.36.8/node-v0.36.8.tar.gz
gyp WARN install got an error, rolling back install
gyp ERR! install error
gyp ERR! stack Error: socket hang up
gyp ERR! stack at createHangUpError (http.js:1473:15)
gyp ERR! stack at Socket.socketOnEnd (http.js:1569:23)
gyp ERR! stack at Socket.g (events.js:180:16)
gyp ERR! stack at Socket.emit (events.js:117:20)
gyp ERR! stack at _stream_readable.js:944:16
gyp ERR! stack at process._tickCallback (node.js:448:13)
gyp ERR! System Darwin 15.3.0
gyp ERR! command "/Users/qk/Applications/Atom.app/Contents/Resources/app/apm/bin/node" "/Users/qk/Applications/Atom.app/Contents/Resources/app/apm/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "install" "--target=0.36.8" "--dist-url=https://atom.io/download/atom-shell" "--arch=x64" "--ensure"
gyp ERR! cwd /Users/qk/.atom
gyp ERR! node -v v0.10.40
gyp ERR! node-gyp -v v2.0.2
gyp ERR! not ok

➜ ~ nvm use v0.10.40
Now using node v0.10.40 (npm v1.4.28)
➜ ~ sudo apm install intellij-idea-keymap
Installing intellij-idea-keymap to /Users/qk/.atom/packages
gyp info it worked if it ends with ok
gyp info using [email protected]
gyp info using [email protected] | darwin | x64
gyp http GET https://atom.io/download/atom-shell/v0.36.8/node-v0.36.8.tar.gz
gyp WARN install got an error, rolling back install
gyp ERR! install error
gyp ERR! stack Error: socket hang up
gyp ERR! stack at createHangUpError (http.js:1473:15)
gyp ERR! stack at Socket.socketOnEnd (http.js:1569:23)
gyp ERR! stack at Socket.g (events.js:180:16)
gyp ERR! stack at Socket.emit (events.js:117:20)
gyp ERR! stack at _stream_readable.js:944:16
gyp ERR! stack at process._tickCallback (node.js:448:13)
gyp ERR! System Darwin 15.3.0
gyp ERR! command "/Users/qk/Applications/Atom.app/Contents/Resources/app/apm/bin/node" "/Users/qk/Applications/Atom.app/Contents/Resources/app/apm/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "install" "--target=0.36.8" "--dist-url=https://atom.io/download/atom-shell" "--arch=x64" "--ensure"
gyp ERR! cwd /Users/qk/.atom
gyp ERR! node -v v0.10.40
gyp ERR! node-gyp -v v2.0.2
gyp ERR! not ok

I personally added the shortcut to reformat code such as JSON.

  ###########
  # Editing #
  ###########

  # ...

+
+  # Reformat Code using the beautify plugin
+  'alt-cmd-l': 'atom-beautify:beautify-editor'

  # ...

Since atom doesn't support reformatting out of the box a dependency to atom-beautify is required. I'm not sure if this is the scope of this project

Since ctrl+n is taken I suggest to use ctrl+m to create new file, something like this:

'atom-workspace, atom-text-editor':
'ctrl-m': 'application:new-file'