NPS Score from external data

We use both HubSpot NPS feedback and a similar NPS tool inside our SaaS platform.  It would be great if we were allowed to feed this data directly into the HubSpot NPS properties instead - as we have to now - handle these NPS scores in separate custom NPS properties. The biggest disadvantage is, that these "external" data is not part of the HubSpot NPS reporting. 

HubSpot updates