Get extended properties of parent Elemental List in child Element Content

Questions
1

Silverstripe V5
Get extended properties of parent Elemental List in child Element Content

I’m at my limit here. I’m using both DNA Elemental List and Fromholdio Elemental Group to see which one is better.
I’m using Bootstrap 5 and trying to get the elements in controllable annd stylable horizontal rows. To aid this I’m using Jellygnite\Silverstripe-elemental style.
I have learned how to pinpoint the style quite granularly but in some cases I need to find what’s in the container (elemental list or elemental group) in each of the child elements

For instance this is one sample yml for the DNA version: In it one can choose from a variety of different purposes and this is then used for a section class. However I need that further down for choosing a different element render template for each one. Help on that (including selecting templates) would be very handy.

DNADesign\ElementalList\Model\ElementList:
#FromHoldio\ElementalGroup\Model\ElementGroup:
  extra_styles:
     Purpose:
      Title: 'Purpose'
      Description: 'Select the type of row'
      Location: 'purpose'
      Tab: 'Purpose'
      Group: ''
      Styles:
        Default: ''
        Hero: 'hero'
        Clients: 'clients'
        About: 'About'
        Team: 'team'
        Call to Action: 'call-to-action'
        Contact: 'contact'
        Portfolio: 'portfolio'
        Pricing: 'pricing'
        FAQ: 'faq'

This is how I get the Section class bit I also need that two levels down in the element if I can:

<section id="{$StyleByLocation('purpose')}" class="{$StyleByLocation('purpose')}">