I have 2 categories in Cloud Firestore and the structure looks like this:

```
Categories (Collection)
|
--- 6FbwakI8Jh8Pst79kEV8 (Document)
    |
    --- Category Name (String) => "Cars For Sale"
--- nMWCgN7g9hZsMaeJPLRj (Document)
    |
    --- Category Name (String) => "Cars For Rent"

```

How can I create custom options for every category like the images below:

[Image 1: Cars For Sale](https://i.stack.imgur.com/mCmNk.png)  
[Image 2: Cars For Rent](https://i.stack.imgur.com/iDaxb.png)

There are different options for every category and I want to know how can I create something like this using Firebase Firestore inside my categories?

> 
> The [URL](https://om.opensooq.com/en/cars/cars-for-rent) if you want to check by yourself.
> 
> 
>