You can add a new KPI from Dashboards.
1. Click DASHBOARDS on the top bar
2. Choose a dashboard which you want to add a KPI
* You cannot add a KPI to Pipeline Velocity or Pipeline Stages
3. Click on +KPI button on the top
4. Choose NEW KPI
See also:
Create new KPIs
Once you add a new KPI, you can choose it from any dashboard.
See also:
Add existing KPIs