Notifier Choice Problem

I have just started developing a simple application by following a video.

The problem i am facing is in the blocks windows, when i try to click notifier.AfterChoosing... which has "choice" button in RED.. nothing happens. While in the video , the user get a "get/set choice option". I tried to update java, restart chrome,, nthing works. 

I have attached a pic of what happens in the video.... and which is not being executed on my pc.  

you get the get/set choice after hovering over "choice"

alternatively you can get it from the variable drawer

Feels like an idiot now... thnks for answer...i kept clicking on it...jst had to wait a few second for the box to appear.