Index - I
| IKey | FRP.Helm.Keyboard |
| image | FRP.Helm.Graphics, FRP.Helm |
| ImageElement | FRP.Helm.Graphics, FRP.Helm |
| index | FRP.Helm.Joystick |
| inHours | FRP.Helm.Time |
| inMilliseconds | FRP.Helm.Time |
| inMinutes | FRP.Helm.Time |
| inSeconds | FRP.Helm.Time |
| InsertKey | FRP.Helm.Keyboard |
| Interpolate | FRP.Helm.Transition |
| interpolate | FRP.Helm.Transition |
| isDown | |
| 1 (Function) | FRP.Helm.Mouse |
| 2 (Function) | FRP.Helm.Keyboard |
| italic | FRP.Helm.Text |
| ItalicStyle | FRP.Helm.Graphics, FRP.Helm |