Members can access your signup modal by clicking a signup button on your site. To create a signup button, you'll need to copy a link from the membership page and paste it into a button on your site.
Step 1 → Create a membership.
Step 2 → Click the green bolt icon to the right to expose the signup link.
Step 3 → Add the signup link to a button on your site & publish.
By default, the "Need an account? Sign up here" link will be disabled. You can enable this feature on the Forms & Fields page.