Having located your role in the Team Board, there are a couple of different ways you can add or delete activities in your role.
Option 1
Click on the blue '+ Add' button at the bottom of the activity card.
Click on the pencil icon on the right to add in a new activity.
To delete an activity, click on the pencil icon to the right of the activity card and select 'Remove' from the drop down menu.
Option 2
Click on the three ellipses to the right of your role title and select 'View' from the drop down menu.
Click on the blue '+ Add Activity' button at the bottom and type in the new activity.
To delete an activity, click on the three ellipses to the far right of the new activity and select 'Delete' from the drop down menu.