I’m developing an application that I’m using GraphQL as a service.
I created an API in the Postman APIs section and choose my Schema file and base on that I generated a collection. Now my Schema file updated but when I click on Refresh in APIs section my schema isn’t updated and I should update that manually also I don’t have any solution for updating my collection base on my new schema file! Because when I click on Generate Collection I must generate another collection and I can’t update the last collection that I generated for this schema base on the changes that I have!
Have they anything for these problems that I can’t find them or they don’t have any solution for these basic requirements?
Welcome to the community 
We are aware of this situation and understand how important this is. Unfortunately, there is no way to do this at present. We are currently tracking this feature on GitHub - below is the link for the same:
Feel free to upvote or add any additional comments on GitHub that will help our team look into it while building the feature. Thank you!! 