Dropdown menu pagination: help

How to?
#1

Describe the problem.
I'm having trouble scraping data from the drop down "category" menu. I want to page through each category in the drop down menu. I ultimately want to go through each category and pull the top "Free" and "Paid" apps. My problem is similar to this one: How to handle a dropdown pagination

I think my issue is mapping out the "Click selector" for my "Click all letters" ID. Is there documentation on the best way to scope this out? Do I just need to understand HTML better? Thank you for any help.

Url: https://sensortower.com/ios/rankings/top/iphone/us/all-categories?date=2020-07-08

Sitemap:
{"_id":"start","startUrl":["https://sensortower.com/ios/rankings/top/iphone/us/all-categories?date=2020-07-08"],"selectors":[{"id":"Click all letters","type":"SelectorElementClick","parentSelectors":["_root"],"selector":"div.content","multiple":true,"delay":"3500","clickElementSelector":"div>div>div>div>div>ul>li.category-item>li:nth-child(n+1)","clickType":"clickOnce","discardInitialElements":"do-not-discard","clickElementUniquenessType":"uniqueText"},{"id":"First example","type":"SelectorText","parentSelectors":["Click all letters"],"selector":".rankings-app-body tr:nth-of-type(1) td:nth-of-type(2) a.name","multiple":false,"regex":"","delay":0}]}

#2

Fortunately, this site uses HTML links (a href) for the category dropdown, so you can just use type: Link. No clicking needed. The example below will navigate to every category and grab the title. You can build your scrapers below the title. I suggest Page load delay: 5000

Sitemap:
{"_id":"forum-sensortower","startUrl":["https://sensortower.com/ios/rankings/top/iphone/us/all-categories"],"selectors":[{"id":"Go to categories","type":"SelectorLink","parentSelectors":["_root"],"selector":"div.category-group div li.category-item a","multiple":true},{"id":"Title","type":"SelectorText","parentSelectors":["Go to categories"],"selector":"div > h2","multiple":false,"regex":""}]}