The way to keybind on macro is to open the Steelseries Engine and chose a macro key to make a key keypress macro.

In game put a action (job change e.t.c) you like on the hotbars then go to keybind option and make a keybind shortcut like ctrl+num1 then in Steelseries Engine make a keypress on a macro button that is ctrl+num1.

Now when you press that macro key it do ctrk+num1 as set to the hotbar.

Hope you understand.