I currently have all of my keywords for a specific campaign in one ad-group. The quality score for these keywords is pretty low (on average between 3 and 5) and I would like segment these keywords into seperate ad-groups in an attempt to raise qs and deliver more targeted ads. Is there a way I can do this without starting from scratch and losing my previous keyword level data?
I recommend that when you start breaking out your keywords into new ad groups to use the AdWords editor. This will speed up the process immensely. It even has a tool call the 'Keyword Grouper' which you could test to break out your ad group into multiple ad groups (although its would still need a number of tweaks).