It is still a working functionality ie. it returns top 1000 rows?  Sorry, I ask.   I am facing an tech support group that will not fix this broken functionality in SQL Server 2017 SSMS on a virtual computer that I am unable to troubleshoot based on claim that SSMS 17.4 doesn't even include this functionality 'so it must be a bug' and is a bad practice.  

If the SSMS install were on my own laptop I would repair .net framework as a start (based on forums I have read for this issue).

I use top 1000 a lot in dev environment.