Does Confluece Cloud allow creating a completely custom Home page for a Space?

[Sanjai]

To begin with, I have read some very helpful answers that explained the following.

• HTML and CSS for the default confluence cloud cannot be customized (Apart from templates, macros and color schemes that are readily available)
• Usage of plugins from the Marketplace. The one I was interested in was 

  Scroll Documents for Confluence. Scroll Viewport does have a Help center theme for Confluence Server, but the plugin for the cloud version is under development.

Here are my questions

Can anyone suggest popular plugins for Confluence cloud? The requirements are the ability to customize the look and feed extensively, support for versioning, Home page macros, and document status (An extensive Help Centre for product documents)

Can we create a completely custom layout for Documentation (like a Help Centre) in Confluence cloud?

Any of your help will be valuable!