alright so as the unique identifiers are reported in SC in a prop or eVar, you will want to do the following :
1.Create a classification for the prop or eVar (campaign variable is a conversion variable as well).
2.a.If all these unique identifiers have a specific format and can be identified easily from the others then create a rule builder classification with regex formula and overwrite data for lets say the past 6 months or less if you want.
i.e: lets say I have campaigns and the format is as follow type:campaign:id and I only want to capture campaigns that come from email. The type for email correspond to "em".
So I will create a regex as follow ^(em)\:(.+)\:(.+)$ and then populate the right reports (http://microsite.omniture.com/t2/help/en_US/reference/index.html#Regular_Expressions_in_Classification_Rules)
In your case if you have a common id for these unique identifiers then you can classify them in a report under the same label and segment on this label.
2.b. If there is no common syntax format for the unique identifiers that you want to classifiy then you will need to manually extract them, classify them maually under the same label and upload the file http://microsite.omniture.com/t2/help/en_US/reference/index.html#Classifications_Importer
Let me know if you have any question