Clear entity data in read only format

Summary

Any data in income statement, Tax automation rules in base entity becomes read only, if a child is added under such entity. I am looking for a way to delete such data

Content

Hello, we have created tax automation rules, loaded data in Income statement and Balance sheet for an entity.

Later, we added a child under that entities.The Tax Automation rules, data in Income statement and Balance sheet for parent can be seen as read only and we cannot clear data.

Please suggest us, how to clear the aforesaid data. Thank you