Thanks Jennifer, that's what I thought, but was looking to see if I missed anything.

Because I need them as dimensions, as in the Time Spent per Visit - Bucketed table above, and I cannot use "Total Seconds Spent" or any of the time metrics in a segment.

I am trying to calculate time spent per visitor. Currently the time spent per visit - bucketed dimension is at a visit level only. If I use unique visitors as a metric, it totals to over what is shown in the column total - see screenshot: When I total up what is the unique visitor column, it nets ou...