Hi Raymond,
No, you definitely don’t have to follow the 0.1 lot entry rule. When you place the EA onto the chart, and go to the Inputs tab, you can change the entry lot size to one that is more suitable for you.
In terms of how much money you need in the account, this would depend on your trade sizes. I would just suggest to start small, and employ good money management. In terms of leverage, my personal preference, and what I trade is 1:100, although this is not a recommendation. Again, I would recommend you practice different leverage on demo accounts until you find one you are happy with.
Thanks,
Ilan