I cannot find the QuantitativeReporting extension in the ExtensionManager in the Slicer preview release(s). I tried it with a few preview releases, the latest one were I could not find it was "version 4.13.0, revision 30670, built 2022-03-03" (MacOS) <img width="848" alt="image" src="https://user-images.githubusercontent.com/49393975/156569673-e9eb069a-89a8-4ec3-ae14-1beb2e1416ed.png">