You need to create different page templates through the theme editor, and then apply them to your different products, pages, collections or blog posts in your Shopify admin.
<aside> ⚠️ It’s very important to notice that JUST the live theme’s templates will be available to assign in your Shopify admin options.
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You can add up to 25 sections to each of your store's page templates. Page templates are a collection of sections (more on sections below) that are configured to give your online store a consistent look and feel.
You can create different templates for:
👉 Follow this Shopify tutorial on how to create new page templates: Create new template
Theme content is built using sections. Sections are customizable blocks of content that determine the layout and appearance of different pages or products on your online store. You can add, remove, edit, and customize sections using Shopify's theme editor.
<aside> ⚠️ Editing a template through the theme editor applies changes to every page that uses that same page template.
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👉 You can learn more about Shopify Sections here: https://help.shopify.com/en/manual/online-store/themes/theme-structure/sections-and-blocks