I have Orion Starshoot Solar system IV camera. I just started astrophotography, so I don't know anything about astrophotography... at all

Anyway, I started taking the video, and the video was way to bright. It is over exposed. But I tried to change Exposure time to 1/30, but I can't do that. The exposure scale only goes from 1 to 100. Also, I want to fix the brightness... It's WAY to bright.
Here is the video:
https://www.youtube....h?v=vy7ZBTuwJuk
I tried to reduce Red and blue colors, and brightness. But it won't get darker!