Theme Horse

Hi sgpsai,
This feature is not available in our theme. It needs code customisation so you need to hire a developer to fix the issue.
We recommended not to change the code because if you change the code then while updating to our new version all your customisation code will be lost. So better make child theme and first unhook the functions and the edit the code.

http://codex.wordpress.org/Child_Themes

Thank you!