Help on a variety of questions

First of all, i’d like to thank the amazing work done with this skin. it’s absolutely fantastic, i’m a big fan of Alanon’s work.

I am relatively new the the skin/customization thing on Kodi and therefore i have some questions related to the functions of the skins.
But before, is there any full documentation/tutorial about the skin which i could use ? i have found some helpful videos but nothing exhaustive so far.

Here are my questions:

1/ Is there a possibility to have several “rows” of widgets for a menu ? Or a widget for/per submenu ?
Let me explain myself, as of now i can create a menu in which i set up a widget (example: Movie menu, widget: popular movies). What i would like to do would be to have a menu Movies composed of submenus: popular movies, watchlist, collection. And then have row of widget for each of the popular movies, watchlist, collection. id i want to have a widget for each of these i have to create a menu, ending up have 3 menus. Is there a possibility to do as i wish ? or a workaround ?

2/ Quicknav menus, i tried to create one but couldn’t find where it is supposed to appear/be located. Can i have some more explanation about Quicknav, their purpose and how to use them

3/ Is it possible to have a customized widget ? menu and attached to it a widget composed of x items which you link to a specific add on folder or a specific video source. is this possible ? if yes, how ?

Thanks in advance for your helpand your work, very sorry if the questions are noob level ;(
Kind regards