craftercms | Parent project for Crafter CMS

Hi team i am new to crafter cms .I am following the https://docs.craftercms.org/en/3.1/getting-started/quick-start-guide.html#installing-crafter-cms-from-archive-download I am using windows 10 .but in the http://craftercms.org/downloads there is no zip file . there is only tar.gz files are there

I was wondering if there is a solution to only change the value of an attribute in a specific component using the Crafter Studio API or a groovy script.

The only thing I have found is the method "Write Content"(https://docs.craftercms.org/en/3.0/developers/projects/studio/api/content/write-content.html) of the API but to only change one attribute you need to retrieve the entire component file, modify the value you need and push the entire file back, that is quite heavy.

I am writing a single page application using ReactJS and MaterialUI. Some of my components doesn't match MaterialUI docs. I found these components' styles are being updated by another NodeJS module (@craftercms/studio-ui) which is using same MaterialUI library.

Is there a way in ReactJS or MaterialUI to not load styles from specific NodeJS modules?

I know one way is to simply override styles in my theme but maintenance of that will not be fun.

Following this documentation, I was trying to implement content inheritance but I could not.

My simple use case is:

Parent component contains CSS data. Child component inherits from it and populates its template with CSS links.

In documentation:

Child: Below is the XML file of a page residing under the above level descriptor and is setup to inherit from it. You’ll note the definition of the merge-strategy as inherit-levels, this invokes the level-based inheritance mechanics that require Crafter CMS to look at current and higher levels for files named crafter-level-descriptor.level.xml (this is configurable). You’ll also note that this page doesn’t specify the CSS file/group of files to include, nor will it need to specify the header nor footer components.

In child page's config.xml file there is no reference of parent.

My question are?

1. Where to create crafter-level-descriptor.level.xml using studio?
2. page residing under the above level descriptor what does this mean, what kind of levels?

Note: I am new to crafter-cms and sometimes the documentation is confusing.