Start working on a task:

Open and activate Minco.

Select a task in the task list.

Click on the counter display to start tracking your time.
You can double click a task in the task list to start tracking time or you can use the shortcut [shift + cmd + A].
If you double click a task in the task list while Minco is tracking time for another task, Minco will switch the tasks and immediately start tracking time for the new selected task.