" Is this document aimed for export to a specific backend," - NO
" or is it just the way you want the org buffer to look?" - YES

The org-mode is a fantastic tool the way it is. I was just enquiring
whether it is possible or not.

In one of my document I have to write few lines like "The following case is
applicable only if you want to do this or that." and then a tree structure
which instructs something.

Orgmode is powerful enough to design the document in a way to meet the
objective. I will think about that. Thanks to all of you.