Theme development

Hello

I have just informed that the major newspaper and magazine national websites in Greece are made from Drupal! For example https://www.ethnos.gr/ or https://www.sdna.gr/. 

I have just start learning Drupal while im building websites with wordpress

I want to ask just a question. How can i freely design my regions on a web site in drupal where i would place my blocks like the websites i mentioned above? 

I've created an additional CSS theme for the sub module while the primary front-end dev is working on style.css. Following the excellent docs, particularly all pages, these two CSS files show up on the home page, 404 page. But my ancillary.css does not appear on localhost/taxonomy/term/86/edit where I'm looking for it. 

#mytheme.info.yml

Hello,

Is anyone familiar with this (https://www.zymphonies.com/drupal-premium-theme/cms-multipurpose-theme) theme or with Zymphonies Premium Themes.   I purchased this theme from Zymphonies and I cannot get the demo version of the theme to install.  I just purchase tech support from Zymphonies for the theme but I am still not very hopeful.  Any guidance would be greatly appreciated, I spent the last 2 months trying to learn Drupal, so I am definitely a newbie so please help. 

How we add a SCSS file to a custom theme?

How to display a "manage form display" in a page views ?

I have stores and groups on my site. I want to create a page with only part of the stores and groups form. How to do this ? In a pageviews, I can add a rendered entity field, but I can only select the entity display, I cannot select the entity form.

For example :

I created a type of store. I want to display the form to create and madifiaction of the store, except 2 fields.

Hello,

I have 3 fields in a content type testimony :

- civility : field_civilite_interlocuteur (select list)

- Name : field_nom_interlocuteur (text)

- Function : field_fonction_interlocuteur (text)

In the field--field_nom_interlocuteur.html.twig template I'd like to concatenate fields to get something like :

Civility name, function.

I can't succeed to get value of other fields.

I try