Wish: Set children keeping hiearchy

Starting situation in Animation manager:
|_ B1
|_ B2

If I want all objects to be attached to a main M object (to move them together),
I may select M object, use the command “Select objects children”, and select all other objects. Then the new situation is:
|_ A
|_ B
|_ B1
|_ B2
The previous hierarchy is lost and IK between A, B, B1 and B2 may no more work as before.

Which: alert message or keep hierarchy option selected by default.

Thanks - we’re taking a look at this.