To move a Task, you change the Parent of the Task you want to move on the Edit Screen.

If you want to change a Sub-Task to a top level Task, remove the value in the Parent.

If you want to change a root level Task to a Sub-Task of another Task, put the ID of new the Parent into the parent field.

If you wanted to move a Sub-Task so it is below a different Task, change the value of the Parent to be the ID of the Task they want the modified Task to be under.

You can use the Parent Chooser to select the ID of the task you want to set as the parent.