Allow use of {{VALUE}} in css selectors

[P-ZeN]

Prerequisites

• I have searched for similar features requests in both open and closed tickets and cannot find a duplicate.
• The feature is still missing in the latest stable version of Elementor ( Elementor Pro )

What problem is your feature request going to solve? Please describe.

Hi,
I'd like to offer the possibility of choosing a variation in the rendering of loop items by using the css :nth-of-type( XXn + 1).

I read this article: https://letswp.justifiedgrid.com/selectors-elementor-control-css-values/ which says "However, you cannot use values from other settings in the CSS selector part, only in the declaration!"
How inconvenient!

Describe the solution you'd like

I would like to be able to write something like this:
'selectors' => [ '{{WRAPPER}} .loop_container .loop_item:nth-of-type({{VALUE}}n + 1)' => '...' ],

Describe alternatives you've considered

For now, i'll recommand users to use custom css to write their own rules, but i think it would be really nice if possible to use value in selector...

Thank you for your cool work!

Additional context

No response