Main task also need to run when its sub-task runs

[bh-e]

It would be great if the main task also runs when its sub-task is active. This give more overview of the main task.

[frankosterfeld]

Sorry, but that's not how the charm data model works, in principle one can track time on the parent code and the subcode independently, and they both contribute to the total work time. The reports however give you the totals for the parent tasks, aggregating the times from the subtasks.
There are no plans to change that. Or do you just want the visual indication in the parent task that one of its subtasks is running?