Hotkeys for FrameForward / FrameBackward

Hi,
I just want to map the FrameForward / Step Forward and FrameBackward / Step Backward Function on my Shuttle-Wheel.
But I don't find the hotkeys for it in the Hotkey Manager in Fusion.
Just the hotkeys for the "Step Forward" and "Step Backward" Buttons down-right in the timeline.
Can anyone help me to find the hotkeys for it?
Thanks a lot
Peter
I'm on Fusion Studio 8.2.1 on Windows.
I just want to map the FrameForward / Step Forward and FrameBackward / Step Backward Function on my Shuttle-Wheel.
But I don't find the hotkeys for it in the Hotkey Manager in Fusion.
Just the hotkeys for the "Step Forward" and "Step Backward" Buttons down-right in the timeline.
Can anyone help me to find the hotkeys for it?
Thanks a lot
Peter
I'm on Fusion Studio 8.2.1 on Windows.