In a project, you have the possibility to assign multiple tasks to multiple team members.

Choose from the menu Projects and select your project from the list:

Click on the TASKS tab:

Select a task list, so that all tasks in this list will be selected. The multi-selection menu bar will appear. The menu bar will also display how many tasks have been selected.

Click Edit and the following Mass edit tasks dialog box will appear:

In the Assign to project members field, select your team member(s) and click Save.

All tasks that were selected now have multiple project members assigned to them. The first project member is displayed and the additional members are represented as a total number.