Zivan NG1 charger

I have a 2002 gem project car and have purchased new trojan 30 XHS batteries for it. It had various deep cell batteries installed when I purchased the vehicle. I noticed the zivan ng1 charger has a tag on it that I assume is for the multi switch selector, is this correct? The tag shows a dot “mark” next to the C/ Gel/12:1,35A line there’s D/AGM, E/Trojan/12:2,6A and F/Trojan/4,5A. Should the multi switch be set to the E or F position?