Being able to set alerts based on existing KPIs (Analysis Graph) instead of create a new custom metric
If I want to create an alert based on some existing KPIs, I need to write the query and can't leverage the existing one.
I want to create an alert when the "Tempdb: Free bytes" is lower than X.
I can't use the existing "SQL Server metrics" that contain this KPI.
Instead, I need to create a new custom metric and build the query. (which in the end it will be exactly the same). Only after that I can create an alert.