 the user should be given the possibility of hiding the content of the item but the button hiding/unhiding it blocks after copying the item the source item should be cloned and not moved (but using a placeholder - I couldn't find draggable with a placeholder) without being removed from list (I have a temporary solution with adding the source item on the end of list but that isn't what I want to achieve) the item has to be moved from one column to another (i.e. from #column0 to #column0, not #column0 -> #column0 [same with #column0] and not #column0 -> #column0)  