What is the easiest way to drag a template on Bitrix?

Question

PHP

There is a working store, and there is a new layout. It is necessary somehow without a strong separation from work to drag the design. How to do all this painlessly?

Answer 1

1) Make a full copy of the site
2) Deploy the copy on the local machine
3) Work with the local copy, create a new template
4) Test and finalize the copy on the local machine
5) Upload the new template and apply it in the settings
PS can use GIT by looking a small course you will understand how to work with it

Answer 2

Start applying a new template to a condition (some key in GET).
In Bitrix, by default, the "printable" template is made this way, for example.
Debug. Test.
Apply to the entire site.