KB11683: How to create a metric which counts only a single key of a compound key attribute

In order to create a metric that counts only a single key of a compound key attribute complete the following steps:
 
Validate the formula and save the metric
 

• Create an attribute with a compound key
   
  
• In the metric editor, drag the attribute to the metric definition
   
  
• Consider the following: if the attribute you created is made of the keys "ID" and "ID1", and you would like to consider only the first key, the following formula should be used: "count(distinct attribute@ID)"
   
  
• On the metric definition, right click on "Count", and select "Count Parameters" as shown in the image below:
   
  

• A new window called "Count Parameters" opens and should look like the image below. Change the Distinct parameter to True and click Ok