for Deleting Elements from a Consolidation, everyone knows TM1 just move the element out of the consolidation, however
Note: If you define the element only within the consolidation, TM1 deletes the
element from the dimension as well.
How to understand this note? I can't repeat what it is saying in TM1. One consolidation only has one child inside it. When I Deleting this only element from a Consolidation, TM1 still just move it out of the group rather than deleting it from the dim. What's wrong here?

Deleting Elements from a Consolidation
Follow these steps to delete elements from a consolidation.
Procedure
1. Select the elements you want to delete.
v To select a single element, click the element.
v To select multiple adjacent element, click the first element, hold down SHIFT,
and click the last element.
v To select multiple non-adjacent elements, hold down CTRL, and click each
element.
2. Click Edit, Delete Element from Consolidation or click Delete .
A confirmation dialog box displays that lists the dimension name and asks if
you are sure you want to delete the object that you have selected. Click Yes to
proceed with the deletion, click No or Cancel to cancel the deletion.
TM1 deletes the element from the consolidation, and keeps any other instances
of the element in the dimension.
Note: If you define the element only within the consolidation, TM1 deletes the
element from the dimension as well.