I found the closest segment which is "time spend on the page".  And when I create segment on Omniture, only to do is select "Make this an Experience Cloud audience" on UI.  After that, I can see the segment directly on Audience manager.

Hi ,We are using Audience Manager and Omniture. We want to create bounce rate trait on Audience manager. For example: Trait rule will should that bounce rate is higher than %80. To do this, firstly, we should create segment on Omniture. But we couldn't create bounce rate metric in a segment. We can ...