S2Engine HD has a tool for mapping input controls. This tool creates an input mapping configuration that engine automatically stores inside a file named input.cfg in the current project folder.
This file is automatically loaded when engine starts a project. Every project can have its input mapping configuration.
With this tool you can make an action inside the game to be associated to a key, a mouse button or a pad button, also you can make an analog value, a float in the [-x,x] interval to be associated, for example, to pad stick or mouse movements.
x can be a any float value
In the first case we refer to Input Actions in the second one we refer to Input Axis.
To access input configuration tool you can click the input tab of the project configurator.
The following image shows the Input Mapper dialog tab selected: