The top pane of the application window contains one or more timeline windows. Each timeline window can contain several effects, displayed as rectangular graphs extending over the time that the effect is to play.
By default, the timeline has a length of about 10 seconds. However, by using the Time Scale slider at the bottom of the pane you can change the amount of time shown in the window, which has the effect of lengthening or shortening the timeline. In addition, the timeline is automatically extended whenever you set the end time of a finite effect to a point outside the current extent of the timeline.
The bottom pane of the window provides feedback and error messages as DirectInput creates and plays effect.