Board Thread:Support Requests - Getting Technical/@comment-10558422-20150608045945

Hello everyone! I attempted to add a Hero Image to my wiki but the option to do so wasn't there. See, I enabled it before a while ago to check that it would work and then turned the feature off. But now the option seems to have gone completely from the Labs section on the 'Special:WikiFeatures' page. I checked on another wiki to see if the option was on theirs and it was. Is there a way to get it back or am I being totally thick and I'm just doing something wrong?

I apologize in advanced if this is posted in the wrong place/forums or if a similar topic has already been discussed; I have never used this site for advice before so I might make noob-ish mistakes. 