Alt Controller’s inputs are the mouse, the keyboard and any number of custom windows containing button layouts that you design using the program. By default, new profiles include mouse and keyboard inputs which is often all that is needed.
If you wish to add a custom window to your profile, use the Edit inputs button in the profile editor window which opens the window shown below. Select Custom Window from the dropdown menu, click Add then click OK.
You will then be able to select your custom window input in the profile editor and click the Design window button to create your desired button layout. For further information, see Designing custom windows,