I don't think they have hotkeys and I don't think you can add any. I ran through the hotkey editor fairly quickly and nothing seems to be showing up. If you really want hotkeys, you can check the output of the script editor and create some very simple scripts that are bound to custom hotkeys.

I don't know the true benefit of the camera sequencer, but I suspect that if you want fast and controlled editing, you would do that in AE or even better, Premiere.