The WishList Member mergecodes or shortcodes can be inserted into a page or post by using a Classic Block in the WordPress Gutenberg editor.
These mergecodes and shortcodes cover a wide variety of functionality. There are codes that can be used to insert a login form, member details, integration payment buttons, etc.
The blue WishList Member mergecodes or shortcodes inserter will appear in a Classic Block
You can also view or create shortcodes and/or mergecodes using the Shortcode Creator on the WishList Member Dashboard. These can be copied and pasted into any of your pages or posts.
You can copy a created code based on what you select from the available dropdowns.
Inserting Mergecodes and Shortcodes is explained in more detail (including screenshots) in the following Knowledge Base articles.