Delete children warning
 

How about adding an option whereby if an item that is being deleted (or shift-deleted) has children, a warning box is presented that confirms that you want to delete all the children as well. When I delete from the Search Results/Child Items pane, it isn't clear if an item has children or not since there is no tree node expander as in the Data Explorer pane.

Or does this exist already?

When you select an item in the Related Items pane, the number of children will be shown in the status bar (Children: x). Also, the item's Has Children attribute (Item Attributes pane) will indicate whether it has children, and you could also add that column to the Related Items pane layout (F9).

The status bar indicator is helpful... hadn't noticed that before. I still think it would be useful to have an option to have a warning to indicate that you are deleting more than just the selected item, in case you didn't notice the children indicator in the status bar before deleting.