Select Scripts > Post-response to define a post-response script for your collection and the requests and folders in it, which will run after a response is received. Learn more about adding post-response scripts.
You can move an existing folder or request to a new collection. In the sidebar, select the folder or request you want to move, then drag it to a new collection
You can also save a copy of a request to a new collection. Select a request in the sidebar, select > Save As at the top, then choose or create a collection to save it in.