I am trying to find a way to add Hotkey to Submit button in MDG Change Reqest overview page

Below documentation shows way to add to buttons configured through global toolbar,
https://help.sap.com/docs/SAP_NETWEAVER_AS_ABAP_FOR_SOH_740/fc79a39b30fe4d9aa983bad6787ab9ad/4b5f4c51f0cf57a2e10000000a42189c.html?version=7.40.15

but for buttons like Submit, Cancel, Revise etc which are dynamic is there a way to assign hotkeys. If yes can you please provide some idea on how to do that.