You can follow below steps to achieve it:
If you component can be dragged in container then:
- On your main page drag the component in parsys container and configure it with data
- Or you can create a config admin only page with parsys container (contains only parsys in JSP Script)
- Once you have configured it then on rest of the pages you can use OOTB Reference component and link it to the content that you configured in step-1.
- Any changes now you make on content on page of step-1 will automatically get propagated to other pages that has got its reference.
Find more on reference component here - http://docs.adobe.com/docs/en/cq/current/wcm/default_components/editmode.html#Reference.
If you component is embedded one then:
- You can use inheritedValueMap concept to inherit configuration from Parent Pages
- The only restriction with using InheritedValueMap is; it inherits configuration only from parent pages and also the relative path of component node under /jcr:content/ should remain same on all pages.
- i.e. /content/site/parent/jcr:content/comp1, /content/site/parent/child1/jcr:content/comp1
See what suits you
Thanks
Runal