Create budget override rule with specific combination of fund and account values

Hi Team,
We have two requirements from users and need your help in getting them implemented:

1. Ability to override the expense budgets only for expense categories starting with specific account values for 1 BSV, i.e. specific account and fund values.

2. Include the Budget Office to be part of the expenditure override approval workflow in ERP.

Now, as far as I have seen when we set the override rules, there is no provision to set it for specific values. Also, only one of the person in user assignment has to approve the override workflow not all.

Can you please let me know if this is doable?