Segragate Bank Account Setup per Operating Unit / Legal Entities

i have 1 BG with 2 Legal Entities with each Ledger, and i have 2 responsibilities to access each Ledger.

I have setup user roles for each responsibilities to each legal entities. but when i search bank account, Responsibility A can see Bank in Ledger B, and can change CoA of it (while i cannot add bank account access belongs to responsibility A)

Can I Segragate Bank Account Setup per Operating Unit or Legal Entities for each Responsibilities of this matter?

Thank You