D5, IBO 4.3.A, IB 6.0.2

How to setup/use TIBOTransaction in my app for hard commits.

1. Drop TIBOTransaction (xAction) on my data module, set IB_Connection to the TIBDatabase component, set all TIBQuery's IB_Transaction property to xAction, then as required do: if (xAction.Started) then xAction.Commit; ??

2. If multiple queries/updates make up one logical transaction is one TIBOTransaction enough?

3. What settings to use:
- AutoCommit = True (same as TIBDatabase)?
- Isolation = tiCommitted (same as TIBDatabase)?

Thanks

[Non-text portions of this message have been removed]