Hmm, I think through the gui you can set up 1 campaign, then right click > modify project > duplicate > enter 99 in the text box ...but then you still have the issue of then having to swap out the urls.
If you or a colleague has any scripting knowledge you could whip up something to generate all the .prj files, slotting in a different url each time.
Comments
Target urls > right click project > import target urls
Urls to build links to > double click on project > click 'edit' next to url box > import
I need to create 100 campaigns all the same with my URLS for each individual client
...but then you still have the issue of then having to swap out the urls.
If you or a colleague has any scripting knowledge you could whip up something to generate all the .prj files, slotting in a different url each time.