How to reset metrics?

What is the correct way to reset Diagrams/ meta in CEE?
Deleting the files in /opt/omd/sites//var/check_mk/rrd seems to produce errors like “Failed to load diagramm” instead of recreating the files.

just reset … delet first the check, then the rrd, then aktivat the check again not fine but works

another Way “perhaps” is with

cmk -v --convert-rrds --delete-rrds but i don`t know if you can use it for a single Metric

Point 8.3 > https://checkmk.de/cms_graphing.html#Das%20Graphing%20in%20den%20(EE)