So I think I see what you are saying you want to do now.
You want to have icons at the bottom of the screen.
Now normally, that would cover the ground. And if the icons were half the height of the screen they would come up to the center of the player's view... the horizon.
What you want to do is move the horizon upwards, so that it is like you are using a viewport that is just in the top half of the screen, but you want the bottom half of the screen to show the ground at the player's feet.. something that would be outside the normal viewport.
Can you do this in Blitz currently? I don't think so.
You want to have icons at the bottom of the screen.
Now normally, that would cover the ground. And if the icons were half the height of the screen they would come up to the center of the player's view... the horizon.
What you want to do is move the horizon upwards, so that it is like you are using a viewport that is just in the top half of the screen, but you want the bottom half of the screen to show the ground at the player's feet.. something that would be outside the normal viewport.
Can you do this in Blitz currently? I don't think so.