What is the step to re-install a watcher license?
Just upload the license, it'll replace whatever is there.
curl -XPUT 'http://<host>:<port>/_licenses' -d @license.json
Thanks for the reply @warkolm. Can you also suggest me the process to get a extended development license? And any document where i can see the pricing for the same.
You need to contact sales@elastic.co for both of those 