How to create metrics that are not affected by the filter?

In before Process Mining, we can use root.metric as denominator. e.g. expression:percentage(metric(Total_count)/root.metric(Total_count) * 100%)

But in Cloud version Process Mining, can not find some function like this. The function I want to achieve is to display the percentage of a certain state. Now I can display the quantity of each status through metric. However, I also want to have a metric that shows the percentage of this quantity relative to the total. I am using a pivot table. I saw that bar chart itself supports percentages, but can not see in pivot table. How should I create a metric that is not affected by the filters I apply on the page, so that it can be used as the denominator?