Ideally this would be offered as an option in the Move, Resize, & Rotate tools, where the current behavior is to delete joints connecting selected parts to unselected parts when applying a transformation (to avoid affecting unselected parts). In many cases, the expected behavior, and the one that should be offered through an option, is those joints being updated to reflect the new relationship between the parts, as opposed to simply being deleted.
Ideally this would be offered as an option in the Move, Resize, & Rotate tools, where the current behavior is to delete joints connecting selected parts to unselected parts when applying a transformation (to avoid affecting unselected parts). In many cases, the expected behavior, and the one that should be offered through an option, is those joints being updated to reflect the new relationship between the parts, as opposed to simply being deleted.