Google Sheets
You can now create KPIs and Key Results based on data stored in Google Sheets, see
Creating a KPI from Google Sheet data
Creating Key Results based on Google Sheets
KPI Targets
You can now create Targets for KPI and these targets can be to increase / decrease the KPI to a certain value or just maintain them at the business as usual level.
Creating your first KPI Targets
Once created they can be checked in, commented on etc