writer sort not working (4.3)

Issue with Writer
Win 7 service pack 1

I can not get sort to work in writer. It is greyed out all the time.
Is there any possible reasons for this or is it non functioning in this version?
Or do I maybe have a bug?
Not good with trying to figure out how to get things to work lol
Please help!

(First time poster, long time user)

To provide an answer more information is needed Please have a look at What information should I include in a question in addition to OS and LibreOffice version? - #4 by ROSt53

I am sure there is a solution to your problem because many LibO users run it on Windows 7.