IWS HotKey vs Shortcut

Hi guys,
On IWS options we have on keyboard section Hotkeys and Shortcuts…for me are the same but seems functionality is not. Can someone pls explain what is the main difference?
I configured the Hotkeys for NotReady reasons with Action codes but are not working as I expect. I see on IWS log they are read and with error, but how to use them? While on the application I’m not able to invoque them…

Thanks