Do you need to create mirror versions of your campaigns to target different locations? Or perhaps you want to copy entire ad groups and simply replace certain phrases to create new, unique ad groups? You can do all of that easily through AdWords Editor.
Decide which campaigns or ad groups you'll need to copy. Next, figure out what you'll need to adjust once you copy a campaign or an ad group.
For example, if you are copying a campaign, you'll likely want to adjust a copied campaign's target locations and budget.
To copy campaigns or ad groups in AdWords Editor: