Pick One (Drag and Drop) with Multiple Correct Answers

Hi Alyssa,

I know this is an older thread, but I think I'm experiencing the same issue as Steve and Thomas.

In my attached example, there are four possible options that can be dragged into only 3 areas, so only 3 options are correct. It doesn't matter which drop area the correct answers are placed in.

This is why I have switched from a regular drag and drop interaction to a pick one freeform interaction. It was necessary to allow multiple correct drop targets for my drag objects.

Using an example on ELH, I was able to create most of my interaction with triggers, however there is one issue. The learner can drag more than one object onto a single drop target, and it doesn't push out the other dragged object. 

In this way, the learner is able to drag all answers onto any of the drop targets and receive the "correct" feedback.

I am looking for the functionality that the built in drag-and-drop interaction has, which is only allowing 1 drag item per target.

Any insight or other workarounds for this issue would be appreciated!