you can set an exiting menu to be the source for 2nd Burger Menu

you can decide on each page/post to have a different menu and position for it.

global setting for the 2nd Burger Menu

because it does not replace an existing text menu – it is always visible as hamburger icon

overwriting the global settings

on the editor meta box there is a possibility to overwrite the global settings

advanced menu styling

for that 2nd Burger you got an advanced setting dialog to rule the look