Whether you are in your firms account or a client's clarity account, by selecting 'Tasks' you can quickly see the following:
Today's Tasks - Any tasks that are due prior to today
My Tasks - Any tasks that have been allocated to you specifically or tasks which haven't been attached to any entity
Client Tasks - All tasks that have been allocated to your clients
Within each of the options you can quickly add a task, whether this is Personal i.e just creating a task for yourself OR a general Task i.e creating a task for a client or a different team member
Tasks can also be generated from Numina when creating an action plan, learn more on how to use Numina here
Read this article here which explains how to create tasks in Clarity.