Is it true that if I create a new subsidiary, and i create a custom role, that any transaction posted to that sub, or includes that sub, will show on my chart of accounts account register?

I don't understand the question. Can you say that differently?

so if the role has full accounting permission, but only to the new subsidiary, if i post a transaction for that subsidiary, it will show on my account register? basically, i want to separate accounting, and with the permissions, I am seeing all accounts across all subs, once I limit accounts to the specific subs, I want to make sure if i post a transaction to an account against that subsidiary, that my accountant, in that new subsidiary, will not see the transaction