You’ve seen plenty of ethics in many of your previous ACCA exam papers, so there isn’t really anything else to add with regards ethics and P2. It only ever appears for 5-8 marks at the end of question 1 and will involve an accountant that had treated something incorrect in the accounts, which therefore questions there professional ethics.
All you need to do is work through each of the recent exam question on ethics and you won’t find it too challenging.