How to work in Bitrix with the "new" sale.order.ajax?

Question

JavaScript

They asked me to change the ordering page, and then I realized how difficult it is to work with it...
The task was set quite simple:

May the blocks always be open! And then all buttons like: "change", "next", "back" will need to be nailed. And the composition of the basket above is moved to the right, instead of what it is.

Sits not - cheerful, hung his little head. And there are serious reasons for the twist! The hunt for our "Fedot" did not go well.
I looked through the tone of "documentation" about how to work with it, but you're confused!
Can anyone help with resolving the issue?
PS As it turned out, order_ajax.js was customized, but mostly the changes affected class names and styles.
Link to the website page.

Answer 1

I did this somehow, here is my customized template, the blocks are just opened there https://github.com/Pum-purum/sale.order.ajax

Answer 2

1. On the off.forum, everything is chewed several times, register as a developer and look there - https://dev.1c-bitrix.ru/community/forums/forum7/
2. Oleg has a sensible article https://www.olegpro .ru/post/1c_bitriks_kastomizaci...
3. In general, this is how Google customization sale.order.ajax
But most importantly, remember the basics:

Answer 3

Try my version