How can I test settings for one block only using liquid?

Store Design
1

If I set two blocks of the same type on a product page (for example).

How can I test a setting of only one of them? (using liquid)

If for example I’ve this block

{
“type”: “promo-text”,
“name”: “Promo-text”,
“settings”: [
{
“type”: “richtext”,
“id”: “promo_text”,
“label”: “Text 1”,
“default”: “

Promo text

”
}
]
}

By placing two of these blocks on a product page, would it be possible to test only one block.settings.promo_text ?

Thanks