How to get "category" at end of a page altered when creating an article?
You don't want to alter that Category at the bottom of the page.
The data structure of mediawiki is primarily built on Categories as you see listed at the bottom of the page. (there can be more tan one)
The "properties" you see in the infoboxes are a different and separate way of organizing data. The full description of this is too complicated to answer here but you can see all the categories and properties from your "admin links" page. (if we do a Skype sometime I can go into more detail)
Last edit: 15:48, September 16, 2015
Maybe time you Skyped. or something.
We have at the end of one article: [[Category:Library]][[Category:Books about Scientology]] But when I actually go and look (as an ordinary citizen) at Books about Scientology, Lo and Behold, there are only two books. Would I be liable to an SP order if I edited the end of All articles about MetaScn books (like the one I have just made) and added in the end: [[Category:Books about Scientology]] ?
PS: This (letter above) does not make sense, because things in square brackets are omitted. What I want to add at the end of those article is square bracket square bracket Category:Books about Scientology end square bracket end square bracket.
The information in the upper right infobox is separate and different from the use of categories...even though it uses the word "category" there. Those infobox "properties" are used to run queries on pages.
e.g. see the auditor listings page where the data from auditor infoboxes are used to print out a variety of different listings based on the various "properties" on auditor pages. http://scientolipedia.org/info/Auditor_Listings
The Categories part of the website are used to organize the data in broad categories. We add pages to categories by adding the wiki markup syntax such as [[Categgory:xyzabc123]] to the bottom of the page.
We'll have a Skype session soon to help clarify if the above is confusing. (likely) lol