Recording and evaluation of throughput times

In some processes, a certain number of steps must be completed within a specified time. This cannot currently be displayed in a reasonable way.
If you do this using designations, for example, these activities are difficult to reuse.
A link via a key figure is also not a good idea, as the times of the individual activities are not added together.

I keep coming across this requirement, but so far I have not found a reasonable, sustainable solution that harmonizes with the viflow philosophy.
Maybe we can work out a good solution for the future, for example via a report.