IPTV Smarters Issue

I installed IPTV Smarters on my Samsung Tv to use Ummo and I noticed that I get way less options when it comes to anything compared to Ummo on Sony Tv’s in my house. For instance I can search, I can’t turn subtitles on or off, and I can’t change the audio language. How would I even do this? I tried going to the settings but all it does is let me go to Parental Control or Stream Format.