You can favorite work items to make it easier your search in the task list.

1. Go to the “workspace” and to the “task list”.
2. Select an existing work item.

   

3. Click the star at the top left of the work item to bookmark it.

   
   
   

For information: The work item must have an associated number to be able to put it in its favorites, so it is not possible to see the star at the top left when creating the work item.

From then on, favorite work items will appear at the top of the task list.

If you want to sort the task list according to a specific field, then this sorting will be done on the favorites, and then on the other work items. The goal is to always keep favorite items at the top of the task list.