Retention Date and Logger Settings

[syntecs]

Hi, I create log entries in Apex.

Logger.error(message, logItem).addTags(tags);
Logger.warn(message, logItem).addTags(tags);
....

The retention date is 14 days. I wonder why I can only select one logging level in a new logging setting (Error or Warn or ...). It works! but when I try to create a second logging setting with another logging level (Warn) I get a duplicate Error. I just want the retention date for all apex generated log entries (no matter what logging level) to be set to 30 days. So, what am I doing wrong? :)

Thanks a lot!!!!

[syntecs]

Logger Scenario Rules