For tutorial requests, you can post it here or send me an email. If you have an image to illustrate what you are suggesting, it is even better.
As for an index, there is no “search” feature for one (I have been looking into that), but there is the visual index here: https://scrapbookcampus.com/element-creation-index/
And you can access it through Classes > Intermediate > Creative Scrap .
Hope this helps.