Do I need to combine my bank statements and income proof into one PDF for the O-A visa application?

Thanks for everyone's help! Got it submitted. Other than the interface and document combining, the only other issue i had was from the consulate's instructions, since I was using a listed Thai insurance company i just needed to upload a copy of the policy(item 6) Problem came when the E-Visa system would not let me leave item 7, the foreign insurance certificate(which I should not have needed) blank.

My insurance broker provided a certificate, but not sure if this is a known thing, or something that the system needs to fix after condensing the visa types a few months ago.