Run the same test cases from a project in two applications

Hi,

I have 4 different applications listed as TestedApps, and they are all the same in terms of functionality but are running in different environments. I spent a few days creating tests in one of these environments and creating aliases with much shorter names. Now I'd like to run these tests across the different versions of the application. My keyword and script tests both reference the object aliases. 

The issue I'm having now is with recreating aliases with the NameMapping editor. I have now copied the Namemapping from one tested application to the other three. Is there a way to clone or import/export the aliases from one TestedApp to another as well?

I 'm trying to determine if I need to manually create aliases for all other environments.