If a theme developer mandates that your sections can only go in the content zone, he would add a zones node with an array of zone names as the value to the section schema:
![Screen-Shot-2021-04-13-at-10-38-24-AM.png](https://d33v4339jhl8k0.cloudfront.net/inline/115081/9c55191c8c8414b993a4ac5b28dc6f2051ed6752/a070416563dbeaa57a7dc331b62da3791e537ded/Screen-Shot-2021-04-13-at-10-38-24-AM.png)
Adding the content zone to your main collection template:
![Screen-Shot-2021-04-13-at-10-39-10-AM.png](https://d33v4339jhl8k0.cloudfront.net/inline/115081/1247358c91ba59083a193e29dfc621d0405a26b8/f3c83b1294b86dd474e9564da159b803dfe72311/Screen-Shot-2021-04-13-at-10-39-10-AM.png)
You cannot restrict by page specifically, but you can put a unique zone in a new page template and assign the template to that page.