MERGE OPTION   Through this interface two or more lists can be merged together to form a single new list. All duplicate addresses will be removed while merging the lists. There is option to delete both the lists that are merged.     To merge two or more lists, we first need to give the name of a new list where the merged list’s contents will be saved. For e.g. in the above picture a new list called TeamList_Final is created in which the contents of Team_List and TeamList are added.Now since the “Delete the lists after merging” checkbox is selected so the lists Team_List and TeamList will be deleted once after they are merged. The Merge button click would successfully merge the two lists.