Customising IntelliJ

Add item to external tools menu

To add an "Open Atom here" to the right click context menu follow these steps

1. Open IntelliJ preferences
2. Filter "external tools"
3. Add new item
4. Deselect Synchronise files after execution and Open console
5. Add atom in the program field
6. Add $FilePath$ in the Parameters field
7. Add $ProjectFileDir$ in the Working directory field
8. Check the dialog and click Ok

To add "Open Terminal here" do the same but at step 5 add "open" and step 6 add "$FileDir$ -a Terminal"

Add keymap to plugin  

To add a keymap to a plugin action follow these steps 

1. Open IntelliJ preferences 
2. Filter "keymap"
3. Locate your plugin
4. Add a keymap to the plugin action

As an example I've added F13 to IntelliVault Push to CRX