If you are do not see the "App Block" section on your theme editor, this means your theme is not a Shopify Online Store (OS) 2.0 Theme.
Non-2.0 Themes: Adding Feeds to the Homepage
When adding a TikShop feed to your homepage, you'll instead see the section "TikShop" come up.
Non-2.0 Themes: Adding Feeds to Pages other than Homepage
If you are trying to add a TikShop feed to another page, you'll need to add some HTML to that page template. If this is something you need help with, please reach out to our support team and we're happy to help.
Go to your theme --> Actions --> Edit Code.
Find the page template you're looking to add the section to. This should be a file that ends in .liquid. For example, product templates are usually called product.liquid. Open the file and add the code snippet where you want the TikShop feed to display.
{% include 'tikshop' %}
Once the code snippet is added, whichever feed is assigned to that product template through the TikShop admin will display. If no feed is assigned, nothing will display.
This video walks through an example of adding the code snippet.