Drag & Drop Issue
Please don't mind the title as I have no idea how to come up with an accurate title.
My situation is that I would like to let the user to drag and drop all the drag items in a particular box. The trick is the drag items can not be stacked together and all must fit in the box to answer this activity correctly. Now if the student answer the activity accordingly, it should pose no issue. However, if the student drag all the drag items into the box (stacked/overlapped) together, when interaction is submitted, it will determined as correct by SL360 (supposedly it's wrong)
So, my question is, is there any way to determine whether the drag items are stacked or overlapped in a drag and drop freeform question?
Thank you very much to whoever spent time reading this.