[Q] GoClever Tab S73 Custom ROM topic

Hi Guys, I got a tablet - GoClever Tab S73, it's all like Dropad A8 or Herotab C8, but one is other - my tab got 3 touchable keys (screen below)
i.imgur.com/aUToCI8.jpg

Is there any custom ROM for this tab? I tried few CWM's but I just can move up/down in menu :/