log data set to file option not appearing in matlab 2015b

Hello i was going through an online video tutorial which was telling about logging simulink data to a file by enabling(tick mark / select) the "Log data set to file" but was not able to find it in Simulink model configuration parameter pane for Data Import/Export , i am using matlab 2015b and the video tutorial was for matlab 2012b i think , i am still able to find the details on "Log data set to file" in the matlab help section but no graphical option to enable it , can someone guide me if i am missing on something , below is the screen shot of my configuration parameter pane