@Daniel-Mulroy Thanks for your suggestion! I am not at all a coder, so the whole jQuery thing is a bit confusing. The email service has a piece of code they need placed in the header of every page on the site, and then (theoretically) I can add form-specific code to any page and it'll work. I suspect that's already more code-adding than I can manage.
I assume your suggestion is different from this, and would effectively create a template that allows me to add the one opt-in form on blog pages where I add the <signup></signup> code. Is that right?
It's sad that Appdrag don't make this an easy-add to a blog page... I would've thought opt-ins are fairly common on blog pages.
For what it's worth, the code from email service provider is:
FOR HEADERS
<script>
(function(w, d, t, s, n) {
w.FlodeskObject = n;
var fn = function() {
(w[n].q = w[n].q || []).push(arguments);
};
w[n] = w[n] || fn;
var f = d.getElementsByTagName(t)[0];
var e = d.createElement(t);
var h = '?v=' + new Date().getTime();
e.async = true;
e.src = s + h;
f.parentNode.insertBefore(e, f);
})(window, document, 'script', 'https://assets.flodesk.com/universal.js', 'fd');
</script>
FOR THE SPECIFIC FORM
<div id="fd-form-60168c8ed6dae5ba1ba28376"></div>
<script>
window.fd('form', {
formId: '60168c8ed6dae5ba1ba28376',
containerEl: '#fd-form-60168c8ed6dae5ba1ba28376'
});
</script>