Building Complete Child Themes using Generate Press

I am building out a series of themes with different looks, styles and structure for my user to pick from. I am familiar with GeneratePress and build out a child theme (copying over the .php files I and customizing).

My questions is, can I make a complete child theme with all the hooks, elements, headers etc. such that when the theme is switched that is all included? I do have Beaver Builder/Themer and was going to use that with GP but if I can build it all using GP (Elements/Hooks) then I would use just GP. I know I can export/import GP settings but I would like the user to go to Appearance=>Themes and select a new child theme.

Also, I will be using GP, GP Blocks with Gutenberg

Thanks!

-Tom M.