[DUPLICATE] Schema Json import/export to separate apps

We are currently running version 4.1.0 in a self hosted instance.
We have several apps running in this instance and they coincide with an environment so we have one app for our dev environment one for uat and one for production etc etc.
We’ve noticed when migrating data from one app to another we would like to be able to do the following:

Importing/exporting specific schemas.
Currently we are manually copying the json for the schema we want to move across but it’s not ideal and was wondering if there could be a nicer way to be able to export and import it.

Thanks!

I think it would be a very good fit for this feature idea: Seed a model / schema to an app from a design tool through events

I have closed this in favor of the other feature request.