It is possible to duplicate existing adgroups in MSN, which may be useful if you need to create a new adgroup which has the same ads or keywords of an existing one but that needs to be swithched on at a different time. To duplicate adgroups go to 'Create adgroup', name it, check the 'Copy existing adgroup ' box, select from the list the adgroup you want to copy. On the right handside you can select which part of the adgroup content you would like to duplicate (ads, keywords or both). It is worth using as it helps saving time when uploading a great number of adgroups.