Get node ID to use in EVA (in block!)

Hi,

I would like to add this as feature request.
To pass to EVA current node ID, if current page is node page. This is possible in Drupal only if EVA is attached to node content or ID is in the path.

Usage example - Display suite, with the ability to move some fields to the DS created block.

I know, that this is kind of general request, but this is one of the main module this feature would be used.