I like to make a custom admin panel for member login. I have done a snippet file for custom view. the problem is how can I add the active button? So that I can disable the member if I want to.

Hi,
Do you use Custom Admin view (http://www.couchcms.com/docs/concepts/d ... forms.html)?
If so, you could use "1" as stated in Docs:
$FUNCS->register_admin_pageview( 'application.php', 'my_edit.html', 1 ); // '1' for showing the 'advanced setting dropdown'

In this dropdown you could unpublish a member.