If task P has additional child C, C will not be shown when P is viewed as a custom root task. Viewing the subtree both with and without additional children can be preferable, so it should be possible to specify either via the custom root URL (likely with a query parameter).
If task P has additional child C, C will not be shown when P is viewed as a custom root task. Viewing the subtree both with and without additional children can be preferable, so it should be possible to specify either via the custom root URL (likely with a query parameter).