Option to include active/wait time of all parallel activities in total

When adding active or wait times to a set of parallel activities, only the largest time allocation is included in the process total. For example, if active time for 1.1 = 5 minutes, 1.2 = 25 minutes and 1.3 = 10 minutes, only the time on 1.2 is included in the process total. This seems somewhat counter-intuitive for analytics. It captures the overall process run time, but doesn't reflect the total staff time spent on the process.