How to merge a distribution list into another:
- Click on the title of the list that you want to merge into another.
- Click Options >> Export all 'X number' of contacts.
- The file will automatically download, and then you can find it in the Downloads folder.
- Click Contacts >> Import/Update Contacts >> From Outlook CSV file
- Choose file > choose the one you just downloaded :)
- Select the "Overwrite" option
- Click on the drop-down menu to select the distribution list that you are merging INTO
- Click Import!
Let us know if you have any questions!