Enable or disable selected nodes

How to Enable or disable selected nodes by one click? How to arranging some nodes under each other ?

There isn't a one-click way of enabling or disabling multiple nodes, but there is a built-in action you can set a keyboard shortcut for.

  1. open up the keyboard shortcuts dialog from the main menu
  2. search for 'enable' and 'disable' to find the actions.

There isn't a built-in action for that in the current release, but they are coming in 2.1.