Hi ​@stephenbologna39,
New API used by Report Designer currently is considered internal by Acumatica. Thus, it is not documented and there is no guarantee about breaking changes for this API.

The API was made internal to reduce maintenance costs since there were no expected external users.
You can create an idea to make the new API public, if it receives enough traction Acumatica may consider opening this API.

As for now, you can try several workarounds:

• You can try looking at Report Designer to investigate how the API calls are done. Try looking for PX.Reports.Design.Api.ReportDesignerApiClientFactory.ReportsApiClient
  But this approach contains risks because there are no guarantee about breaking changes in this API.
• I believe, it’s possible (although a bit hacky and inconvenient) to write a customization package with customization scripts or `CustomizationPlugin` that can prepare reports on one site and upload them to the DB in another one. You can find more on customization plugins here:
  https://help.acumatica.com/(W(13))/Help?ScreenId=ShowWiki&pageid=3ef5784b-1602-4a04-b6b9-52b69c79fe91
  Or perhaps customization may export reports to XML and import from XML in batches.
• Maybe something can be done with Import/Export Scenarios but I’m not an expert in this area.

Thanks ​@snikomarov36 

I assumed this was the case, but thank you for offering some suggestions and workarounds.