How to migrate all dashboard from one index to other index

I have created one dashboard, with several vitalizations. Later, i have created an index and forwarding the logs to newly created index, but I figured out that dashboard is not working as expected. I want to know how to migrate all to new index.

You will need to export everything and then edit that export to point to the new index.
There isn't a simple copy and replace function yet, so I raised this;