Change Health Dashboard pie reports of CIs by discovery source to another metric

[EDCT]

Hi, my org is looking to use CMDB Health Dashboard more and share this with a wider audience.

One of pie chart reports on each metric tile is CIs by Discovery source 

e.g. from ServiceNow's product docs 

Is it possible to change this Pie report so it is by another attribute rather than discovery source? For our org discovery source is less important and other attributes might be more helpful. 

Thanks