[xwiki-users] Need help for migration path from XWiki enterprise to XWiki enterprise Manager

Hello,   We are currently using XWiki enterprise 1.7.2. I would like to upgrade to the last version (1.9.3) but as we have set up several instances, I would like to take avantage of XWiki enterprise manager, but I could not find information about the good migration path. Should I create a new instance of XWiki enterprise manager 1.7.3 or can I just upgrade one of the instance of XWiki enterprise to XWiki manager ? How then should I proceed with the other instance (need to upgrade each instance before doing anything, then how to merge to the manager instance ?) ? Thank's for your help. Nicolas FRANK Finance active