goog.fx.DragDrop

List 1 (combined source/target, can be dropped on list 1, list 2, button 1 or button 2).

Item 1.1
Item 1.2
Item 1.3
Item 1.4
Item 1.5
Item 1.6
Item 1.7
Item 1.8
Item 1.9
Item 1.10
Item 1.11
Item 1.12
Item 1.13
Item 1.14
Item 1.15

List 2 (source only, can be dropped on list 1 or button 2)

Item 2.1
Item 2.2
Item 2.3
Item 2.4
Item 2.5
Item 2.6
Item 2.7
Item 2.8
Item 2.9
Item 2.10
Item 2.11
Item 2.12
Item 2.13
Item 2.14
Item 2.15

Button 1 (combined source/target, can be dropped on list 1)

Button 2 (target only)