Need help adding custom feed and packages

Hi devs,

I know how to add a custom feed directory with packages and then getting those packages available in the menu config.

I want to know if we can create a new custom menu to be visible while make menuconfig. Is it possible to create custom SECTION and CATEGORY. I'm trying to understand the feed script to see what actually happens during 'feeds update' and 'feeds install' but with no success. Can someone please guide me how to achieve what I desire.

Please hint me at right direction.

P.S. I'm completely a beginner in openwrt. We're migrating from buildroot to openwrt.