Creating a new state is as simple as making a drag-and-drop*:
Once the state is on the canvas, you can move it freely, define its logic, add/remove connections, or take another action.
*it is also possible to just click on 'New State' if you don't like to drag-and-drop
There are different kinds of plug-and-play logic that the platform supports.
A full list can be see in the State Types section.
Clicking on the "+" button in the middle of the state will open a menu, from which you can choose the desired state logic type.
Choosing a logic type will open a new modal, in which you can configure and customize that logic.