I want to add a second domain to this account but do not see an add domain button in cpanel
Unfortunately, we allow only one domain in our free hosting account servers as per our terms and conditions.
It is not possible for your free hosting you need to terminate your account and request a new account for any change.
I am in a situation that needs a change of domain name in my freehosting account. I have sent an email to the support , I am asking here about a way to do it by myself from my dashboard/login.