Sales Tax in Quotes

I now have Epicor 10.2.500, I see that taxes are listed in Quotes but not calculated and I can’t seem to add tax to a line. I also see a green bar ‘Tax Exclusive Pricing’ and think I need the opposite…

edit:
I have found in Company Configuration Modules > All Modules > Taxes that I need to check 'Calculate Taxes in Quotes.


but when I do that and then save, I get this pop-up and am unsure what it means image