Support for multiple dnd

[borisrorsvort]

Do you plan to add support for multiple simultanous dnd ?

[zaubererty]

Is already supported, cause you can transfer a collection

[borisrorsvort]

I was thinking about smth like this where you can shift click then dnd http://www.jqueryscript.net/demo/jQuery-Plugin-For-Drag-Drop-Multi-Select-List-Box-fieldChooser/demo/

If thats what you were thinking about, could you update the docs to reflect that use case?