[Feature request] Support bookmarking queries

Moved from GitHub ratel/195

Posted by anukul-mohil:

I find myself going back and forth in ratel history to find queries I’ve made, or copy/paste them to some external file.
Would be really nice if you guys can support bookmarking queries in ratel, would be great if we can share these like Postman collections too.

MichelDiz commented :

This seems a reasonable request. But isn’t https://github.com/dgraph-io/ratel/issues/171 the same request? Or similar.