All the default text and language on checkout pages are text labels and can be edited by clicking on the left sidebar (Text Labels icon) (There is no need to edit any HTML code).
It will highlight all text labels in yellow, to edit them, please click on the variable name.
For example, instead of clicking on "Enter Email", click on "enter_email_placeholder"
Part of the H1 title "Create Profile: Premium" can be edited in the text label "listing" and the rest of the title, under Finance >> Membership Plans.
It is stored on this widget "Bootstrap Theme - Signup Page - H1 Title".
NOTE: We do not recommend editing the widget, it is better to use the text labels instead.
About the "Save % with this option" label:
The percentage can be removed by leaving this text label empty:
Removing the whole section is possible as well:
By leaving blank or empty these 2 text labels: save_label_billing and per_year_option_billing
There might be some text labels that are not highlighted like the card number, expiration date and the security code.
To edit these 3 labels, please follow the steps in the image below:
More About Editing Sign Up Pages: