Good day, Stevo_Perth. For now, you're unable to inactivate accounts in bulk. 

I'll guide you on how to make an account inactive:

1. Click Accounting.
2. Go to Chart of Accounts.
3. Choose an account.
4. Click the Account history/Run report drop-down arrow, then select Make inactive.
5. Select Yes when you receive the message, "Are you sure you want to inactivate this?".

Inactivating accounts in bulk is a good idea. I'll personally share this to our management team. They'll pass this along to our product developers for evaluation.

Please know we're just here if you need our help. Have a good one!