BuddyPress.org

1. In BuddyPress, we by default get to see member page. I want to know how to redirect someone who is logging in/ new user after registration to News feed?

search for login redirect plugins for buddypress

2. I want to keep those wall, timeline and all in menu bar instead of profile tab. How to do that?

check wp admin bar codex or associated plugins

3. I am unable to hide admin bar/ that WordPress logo bar for non-admin user. no plugin helping me out.

am aware of atleast 2 plugins which are working for me. u need to test/check which ones work with ur theme/setup

4. how to make the menu such that signed in user can see log out button and other sign in/ register?

via buddypress components in the menus. logged in and logged out menu links

5. how to enable realtime notification and instant messaging private n groups both?

notification is already there and its real time. i belive there is a group chat plugin for buddypress as well

6. how to remove show dropdown menu in profile

that would depend on ur theme which u are using

PS:- I don’t know PHP much. moreover, I cannot afford to hire someone.

then this would take much time and effort to customise it as per ur needs

start from here

Configure BuddyPress