Ninja First of all, sorry for replying late. I was away without computer access.
I checked and tried to use t4 with article module. I removed custom html from template.
However there are still few problems I need solutions for:
1. I have added 2 menus in the footer section. However, 1 of it is not visible. https://pasteboard.co/JYupW4G.png
2. I have applied ja_artsy - Default template to blog. When I open the blog post, footer cannot be shown there as it is built in T4 page builder section. Also, it is taking no container settings from template which is making blog posts to look ugly (artsy theme color settings are also reset for the post). I am stuck here.