Custom menus

when you say ‘tab’ do you mean the menu item?
you should be able to add your own set of item, in your case the category into your own custom menu. and set in either primary or top menu location.

I used tab word because in wordpress menu and page can use in same way. That’s why i used tab . i mean with tab is like in current page we have

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i did some of things, with some videos help. not sure how can i hide some post from home tab and display them only on another tab. for example you can visit .
https://www.geekpills.com/ . Home and about is displayed (These are pages),which is defined in menu.
I like to add another tab like Linux, Database, Motoring with them and their sub-tab. i Can do same , simply add pages and add them in same menu.But that not hide post related to that page from Home tab.
I like to hide their post from Home tab. i could add links on another tab, but hide form home tab is must.

add this to functions.php or your own child theme functions.php to filter out post from category you do not want to show in homepage.

function meso_custom_home_query() { if( is_home() ) {
query_posts('cat=-3,-4'); //category ids
}
}
add_action('bp_before_post_query','meso_custom_home_query');