I contacted 3Dconnexion support about this and they said...
Whether 3D device support is added to an application is therefore determined by the application developer, not 3Dconnexion. 3Dconnexion created an SDK (Software Development Kit) for this purpose, which any application developer or application vendor can download for free, and which allows them to integrate SpaceMouse support into any software.
Please can this be incorporated into future releases? 🙏🏻