I've created a new tag "LinuxOnAzure". But it seems that the superuser doesn't allow the upper case in tag. So the tag becomes "linuxonazure". It's not good for reading. I would like to change it to "linux-on-azure". But the system tells me that the tag "linux-on-azure" is same with "LinuxOnAzure". Is there anyway to edit the existed tag or create the new tag with "linux-on-azure"? Update: Here is the error information [![Error Message][1]][1] Any help is highly appreciated! Thanks, Steven [1]: https://i.sstatic.net/PdugY.jpg