Thank you for the reply.
I am Still in AEM 6.3.
And Yes, The OOTB templates does not work for me. And moreover like it was shown in the Article that was suggested, They have their own Custom template for the We.Retail. Similarly I want to have my own Custom template. But my current templates are Static templates. So, I was trying to use the same custom template for the Experience Fragment as well.
So looking for a way around here.