Also, assuming I have sufficient funds, would it be allowed if I placed an order every second continuously for six hours? (For context, I would be doing this manually.)
Lastly, in the scenario where I place one order per second, how would the exchange distinguish between manual orders and automated ones?
If you have sufficient funds and risk management measures in place, technically you can place one order every second for six hours. However, this would be considered high-frequency trading behavior, and exchanges as well as brokers closely monitor such activity.