Redmine

Hello,

I am lookig for a redmine feature/plugin that automatically calculates the time spent on an issue based on the ticket status. E.g., it sums the time a ticket was in the status "In progress". I am looking now for one and a half days to find something, but I can only find plugins where the user explicitly has to define the time spent on an issue.

I assume that all the information should already be in the database, since redmine known when the status of a ticket has changed. Therefore, my expectation was that such a feature/plugin already exists? Am I only unable to find it, or do I have to write a corresponding plugin it on my own?

Many thanks,
Chris