Hi Frans,
I believe there are 2 parts to your request
Support for Static thresholds, ability to enter absolute values vs. the current percentages. if that is correct, this is on our short term roadmap (so we should see it in Product in coming 3-6 months)
Studio currently does not support metric expressions, this is something we are evaluating in terms of customer requests to plan for.
Let me know if any further clarification is desired.
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