Hey Chris,
Thanks for posting the question. Yes, you can use any calculator to decide how much you want to trade depending on the risk tolerance and account size.
However, in the courses, we keep it at 0.1 when it is an individual EA and 0.01 when it is a portfolio Expert.
Usually, in the portfolio expert, there are 10 EAs, so if they all open 0.01, it will be 0.1. We take it as a ‘one’ strategy.
Let me know if that answers the question.