How to add another page in appearance tab of admin panel?
You’d use the add_theme_page() function. Basically, it’s the same as adding any other settings page, but instead of add_options_page(), you use add_theme_page(). More info: http://codex.wordpress.org/Creating_Options_Pages http://codex.wordpress.org/Settings_API http://codex.wordpress.org/Adding_Administration_Menus