Use it like a phone. Pick any screen below to jump straight to it. Light / Dark: Settings → Appearance.
Tap a folder to open it. The others slide down and wait at the bottom.
Pull the stack up on Home, My items or Check to spread it.
Tap or pull up the folders at the bottom to raise them, then pick one.
Swipe an open folder down to close it.
Swipe the Wait folder left for the price graph.
Swipe from the left edge to go back.