Eurotherm
.

What does "Set As Drop Target" (or "Set as Drop Zone") mean ?

The "Drop Target" is the small window at the bottom of the tree view. It allows a single item in the tree view to be fixed in place so that the tree can then be browsed and items dragged from the tree view onto the small window (or "Drop Target"). This is particularly useful when the tree is getting very large. When you right-click on an item and select "Set As Drop Target" the item will apppear in the Drop Target window.

 

If the user double-clicks on the drop target it will locate the item in the tree view and select it.