The version history for v6 says:
Right-clicking on a player, layout, or flow now ensures that the list item is correctly selected
before the context menu appears, so all menu items are appropriately enabled or disabled.
It would be nice if this were extended also to the page icons in Engrave mode.
Currently, right-clicking on a non-selected page icon only selects that page; a second right click is needed to display the context menu.