[Koha] How "Instant Fine Calculation at Checkin" works?

[Vimal Kumar V.]

Dear Friends,

I heard that a new feature added with Koha 3.8.1 version,
http://koha-community.org/koha-3-8-1-released/

"Instant Fine Calculation at Checkin"

I would like to know how it works?

Documentation available?

-- 
Vimal Kumar V.
Mahatma Gandhi University Library
Kottayam, Kerala- 686 560
Web: http://www.vimalkumar.org
Blog: http://linuxhalwa.blogspot.com http://kohageek.blogspot.in
---------------------------------------------------------------------------
"I forget what I was taught. I only remember what I have learnt"
-Patrick White