App - Game Parameters

I play 30 second chess on the app, but I can't find a way to set up the highs and low of who i play. Is this possible at all? I'm around 1400, but I get paired up with 3-900s. And never play anyone higher than 1450.  How do I adjust this on the app?

When you select the option for new game you will find a feature for custom game there you can select rating range for your opponent

The problem is you can only play 30 second games if you first set it up on desktop. You cannot create 30 sec games on the app. So, I first set them up on the desktop, and there, you're right, you can set parameters. So I set it up -/+ 150. PLay the game once on desktop so it's in my archive, then go the app, find the game, and hit the "play another game" and then I get another 30 second game on my app. The problem is, is that when I do that, I get -400 players. 

@rpatel16720