URL doesn't change and CSS of 'next' button does change. How to scrape?

How to?
#1

This is a follow up from someone else's post that wasn't resolved. CSV mile mismatching data .. beginner help

This sitemap code will scrape the first page of data and then stop because the click selector of the next button is different on each page. E.g div.pagination:nth-of-type(1) li[p='1'] then div.pagination:nth-of-type(1) li[p='2']...div.pagination:nth-of-type(1) li[p='242']. Anyone idea how to solve this,

Url: https://elephrame.com/textbook/BLM/chart

Sitemap:
{id:"{"_id":"forum-elephrame","startUrl":["https://elephrame.com/textbook/BLM"],"selectors":[{"id":"Row wrappers","type":"SelectorElement","parentSelectors":["_root"],"selector":"div.items-list > div.item:nth-of-type(n+2)","multiple":true,"delay":0},{"id":"Location","type":"SelectorText","parentSelectors":["Row wrappers"],"selector":"div.item-protest-location","multiple":false,"regex":"","delay":0},{"id":"Date","type":"SelectorText","parentSelectors":["Row wrappers"],"selector":"div.item-protest-date","multiple":false,"regex":"","delay":0},{"id":"Source","type":"SelectorText","parentSelectors":["Row wrappers"],"selector":"li.item-protest-url","multiple":false,"regex":"","delay":0}]}"}

#2

Below is an improved version of the sitemap I previously made. This version includes a limited paginator. In the example below, it will stop at page 8. The paginator is limited by a :not condition at the end:

div.pagination ul > li:nth-of-type(4):not([p='9'])

You can change p= to the page number you want to stop at, plus 1. For example, if you want to stop at page 42, then make p=43.

To completely remove the limiter, just delete the :not condition, leaving only:

div.pagination ul > li:nth-of-type(4)

Note that scraping may take a very long time without a limiter, or Chrome may run out of RAM and crash.

Sitemap:
{"_id":"forum-elephrame-blm-sept","startUrl":["https://elephrame.com/textbook/BLM/chart"],"selectors":[{"id":"Results wrapper","type":"SelectorElement","parentSelectors":["_root","Limited paginator"],"selector":"div#blm-results","multiple":false,"delay":0},{"id":"Row wrappers","type":"SelectorElement","parentSelectors":["Results wrapper"],"selector":"div.items-list > div.item","multiple":true,"delay":0},{"id":"Location","type":"SelectorText","parentSelectors":["Row wrappers"],"selector":"div.item-protest-location","multiple":false,"regex":"","delay":0},{"id":"Date","type":"SelectorText","parentSelectors":["Row wrappers"],"selector":"div.item-protest-date","multiple":false,"regex":"","delay":0},{"id":"Limited paginator","type":"SelectorElementClick","parentSelectors":["_root"],"selector":"div[itemprop='text']","multiple":false,"delay":"3600","clickElementSelector":"div.pagination ul > li:nth-of-type(4):not([p='9'])","clickType":"clickMore","discardInitialElements":"discard-when-click-element-exists","clickElementUniquenessType":"uniqueHTML"},{"id":"Subjects","type":"SelectorText","parentSelectors":["Row wrappers"],"selector":"li.item-protest-subject","multiple":false,"regex":"(?<=Subject\\(s\\)\\: ).+","delay":0},{"id":"Participants","type":"SelectorText","parentSelectors":["Row wrappers"],"selector":"li.item-protest-participants","multiple":false,"regex":"(?<=Participant\\(s\\)\\: ).+","delay":0},{"id":"Description","type":"SelectorText","parentSelectors":["Row wrappers"],"selector":"li.item-protest-description","multiple":false,"regex":" (?<=Description: ).+","delay":0},{"id":"Sources","type":"SelectorText","parentSelectors":["Row wrappers"],"selector":"li.item-protest-url","multiple":false,"regex":"","delay":0},{"id":"From page","type":"SelectorElementAttribute","parentSelectors":["Results wrapper"],"selector":"ul > li[class*='active-page-choice']","multiple":false,"extractAttribute":"p","delay":0}]}