From the main Tasks list, click on the + New Task icon at the top right.  

Enter a Task Description. 

Select a Start and Due Date. 

Status – To Do, In Progress or Complete.

Owner – select a name to assign the tasks to a team member.

Item – Click on the link icon to select an item type to link to or leave blank to create a standalone task.

Once you have selected an Item Type you will then be able to select the Campaign, Email, Generic or Landing Page to link to.