If you have hosts like database hosts or switches showing a lot of servicec in Checkmk, there is a way to group the services in the table view:
Setup → General → Global settings → User interface → Grouping of services in table views
Here you can add the regular expression of the grouped services. In my case, I want to group all Oracle Services starting from "ORA"
After saving the rule, the Service view of the host will be changed like that:
Checkmk will show ony WARN/CRIT/UNKN/PEND Services outside the group
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