Sorry. I do plan to explain this in more detail on the Wiki itself.
All school pages use the School templates. In the wiki
Code:
{{Blah}}
Is a call to template Blah, which gets replaced by what the page Template:Blah contains. It can also have parameters:
Code:
{{Blah|1|2|parameter 3|a long parameter 4}}
The school pages, you might notice, start with {{School| ...}
So they use
Template:School. Editing this page will change all Schools pages.
However, writing up Templates is a big mess. You may notice that the Template:School code is a weird mix of Mediawiki syntax, HTML, Semantic Queries, and GMAT Club extensions {{#x:****}}.
Do not worry if it does not make sense. It may be more cost-effective to train only one person to understand all that, so feel free to contact me when you need to change templates.
FYI, the schools pages show Admitted to: for some time already, since Dec 28.