Google Adwords Campaign diff tool

Hey Guys,
is anyone familiar with a tool that compares and synchronizes different campaigns in Google Adwords?
I frequently have several campaigns for same product but targeted for different region/language/time zone etc… I have a campaign for one of the products where I have like 7 different copies of the same campaign.
Over time I make changes in one campaign that may also apply in other campaigns (for example find a negative keyword) but I just forget to apply changes everywhere….
Google Adwords Campaign diff tool

See original post by Dragan Radivojevic