I thought I heard in a technical session at the Partner Conference that it’s possible to “reuse” an existing map ID for a newly created layer. I know this sounds odd, but I created some layers for a project and I have recreated and republished those layers. They, of course, have a new map id now. I have several instances that are pointing to those original map ids. It would be great if I could delete the original layers but use their map ids with the newly created layers. This would be a huge help for the ongoing development work I am doing on this somewhat large project.