I had a project that was team managed and needed to make it company managed. For that I had to create a new project then move all the items to that new project, delete the old project so I can be able to reuse the key again which I have done. I was able to use the old project key again and changed all items to that project name. Issue is that all the old items were renumbered, I have a list of all current ID's and previous ID's. I wanted to see if I can use a CVS file and go in and change the new issues keys back to the old issue numbers