Problem with script pagination

Hi, I'm trying to scrape the site below, which loads more elements as you scroll down. I'm unable to catch the loading icon to inspect it, or find it in the code behind the page. Does anyone have any suggestions how to do this?

https://www.bimstore.co/manufacturers?search=&sort=

Sitemap:
{"_id":"bimstore","startUrl":["https://www.bimstore.co.uk/manufacturers"],"selectors":[{"id":"manufacturer","type":"SelectorLink","parentSelectors":["_root"],"selector":"h2 a","multiple":true,"delay":0},{"id":"Name","type":"SelectorText","parentSelectors":["manufacturer"],"selector":"h1.profile-block__hide-on-mobile","multiple":false,"regex":"","delay":0},{"id":"Address","type":"SelectorText","parentSelectors":["manufacturer"],"selector":"ul.details__address li:nth-of-type(2)","multiple":false,"regex":"","delay":0},{"id":"Phone","type":"SelectorText","parentSelectors":["manufacturer"],"selector":"ul.details__address li:nth-of-type(1)","multiple":false,"regex":"","delay":0},{"id":"Email","type":"SelectorElementAttribute","parentSelectors":["manufacturer"],"selector":"li.email a","multiple":false,"extractAttribute":"href","delay":0},{"id":"Website","type":"SelectorElementAttribute","parentSelectors":["manufacturer"],"selector":"a.new-window","multiple":false,"extractAttribute":"href","delay":0},{"id":"Categories","type":"SelectorText","parentSelectors":["manufacturer"],"selector":"div.c-filter__field.purple select.js-search__change","multiple":false,"regex":"","delay":0}]}