Can we change/Edit current Balancing segment Hierarchy?

Summary:

Segment hierarchy change

Content (please ensure you mask any confidential information):

Currently we have a segment hierarchy but wanted to change to different structure. Is it possible to update the current hierarchy or do we need to create a new one(screenshot below) with new start and end date?

If we create additional hierarchy will it have any downstream impact like integrations or will thre be any issues with FRS reports?

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):

Hierarchy structure change:

Future Hierarchy:

current hierarchy: