How to make sub-statistics in Google Analytics?

Question

Google Analytics

Hello everyone,
on our poster site events of different organizers are grouped in their sections. For example:
website: www.yaidu.ru
organizer section: www.yaidu.ru/stageaction/
his events:
www.yaidu.ru/stageaction/boris-grebenschikov-i-akvarium-s-programmoj-prazdnik-ur/
www.yaidu .ru/stageaction/vezde-i-nigde-kontsertnyj-tur-najka-borzova-/
Task: give the organizer access to statistics on his events.
How it can be implemented "on the forehead":
1. A person registers in Google Analytics
2. A person creates a Google Analytics counter
3. A person enters the Stage Action profile on Yaidu.ru and indicates this counter
4. We mix it into the Google Analytics code on all pages inside www.yaidu.ru/stageaction/
5. A person clicks on the link in the Stage Action profile and gets into Google Analytics for their events.
How I would like to implement:
1. A person clicks on the link in the Stage Action profile and gets into Google Analytics for their events.
Are there ways to implement this, ideal for the user, option? Can we use the API to extract statistics from the site's Google Analytics only at the addresses www.yaidu.ru/stageaction/* and share a private link to this statistics with a person? Without any registrations and gestures on his part?