Drag and drop

Hi all, I have seen plenty of help regarding displaing extra items after a Submit button has be clicked to check the correctness of a drag and drop question. What I have not seen is how to display a block of text (explaining why the drop selected is correct- this is text item that is invisible by default) when item A is dropped onto Target A.

I have created your stock standard D and D :

2drop targets

0 distractors

3 items to drop (2 on 1 target and 1 on the other target)

3 invisible text fields ( to show when a drag item is dropped on a targart- the correct target)

I have tried what feels like a thousand attempts using variable etc etc. I cannot use a Submit button [apperently].

Any ideas?

I can submit the file if required.

Thanks Ernie