Vertical movement with Dragdrop

I would like to keep an object with Dragdrop only moved in vertical and within an area, not for the entire game. Like a scroll. How I can do?

Thanks!

You can adjust the x coordinate of the object in the dragging condition as shown in the following:

vertical-drag-and-drop.capx

Thank you very much! I have also solved another problem I had also by this. Thank you very much again!