Custom scale for highlights in Process Explorer app

Currently the process explorer highlights activities for a chosen metric according to a automatic scale.

This is causing some issues when there are large differences per activity in terms of measure result

For example i have a process where an activity can take a few MS while other activities can take even a few Months.

The automatic scale basically only highlights the activities that take more then a week.

Ideally i would be able to setup some custom highlights where for example i could say

Activities that take up to

1 min -> white

1 hour -> light red

1 day -> red

1 week -> dark red

1 month -. black