Quick question, trying to create a "bank" account for testing purposes (oneWorld Account), I noticed that you cannot select multiple subsidiaries or tick the "Include children" box, so I'm assuming each subsidiary must have its own bank accounts (same thing for credit card accounts.). Is this the standard, best practice or legal way to always go for this type of accounts? Let's say I want to create a Journal Entry and need to use a bank account to debit, I need to have created all the bank accounts per subsidiary in order to be able to select the corresponding bank account, right?

Correct. Though if you're transferring money between subsidiaries, you'll need to do interco entries.

Thanks @RJMNS!