Render Edit button of campaign detail page only for all related campaign members

Hi,

I want to render Edit button of Campaign detail page for all related campaign members.
I am using tab view to show campaign detail & all related campaign members in separate tabs.

I created new Model for all related campaign members, which is pulling correct data on tab screen. but when i use same model filed to be compared with logged in user, then its not working in rendering of a button.

Can you please help me on the same?

Thanks,
Aanal