First 3 steps

& logics has a built in demo circuit. That's what you see when you start the program for the first time.

1. First you see the schematic in the editor. The RUN button starts the simulation:

2.The solid green circle inside the square is a toggle switch. It's current output is logical low.
When you touch it the color changes to red.
Colors and levels
red = high
yellow = undefined
green = low
The box with Cp written in it is a probe. You will see the recorded events in a channel in the waveform browser.

3. The SCOPE button shows the recorded wave forms.
The BACK button brings back to schematic.