You can Edit or Delete a Checklist from either the My ToDo list or the ToDos list.
To Edit a Checklist:
Navigate to the Project Management V2 tab and select the relevant project.
Click on the To Dos tile to view the list of tasks.
Search for the task that contains the checklist item you want to edit.
Locate the Checklist section within the task.
Click the Edit button next to the checklist item you want to modify.
Make the necessary changes and click the Save icon at the end of the checklist row.
To Delete a Checklist Item from a Task
To remove a checklist item from a task, follow the steps below
Go to the Project Management V2 tab and select the relevant Project.
Click on the To Dos tile to view the list of tasks.
Search for the Task that contains the checklist item you want to delete.
Locate the Checklist section within the task.
Click the Delete button next to the checklist item you want to remove.
The checklist item will be deleted from the task.
You should follow the same steps to edit or delete a checklist from either the ToDo list or the My ToDo page.