can you add more details please ?

Marking this as enhancement. However, this needs better specification to see what needs to be done. Or a pull request.

When we search for a content, we are showing only the matching line of content with line number. I need a customization option to include n lines before and after the actual line in the search result screen.

All right. This is something which probably needs to be done in Summarizer code.

I have little design sense, but I'm thinking something like the following:

When you do a 0-context search, results would appear as they do now:

But if you specify to show some extra context, we make sure to clarify the non-contiguous sections. (We don't do that for 0-context search, but it's not a problem when every line has a highlight.)

I think up to 3 lines of surrounding context is a good maximum, because we still have to enforce the contextLimit:

But then the "more" view has the unlimited context:

This is all real BTW. Seeing if #2732 ever gets merged.