EventLight supports Megamenu for Desktop layout and dropdown or Off-canvas for Mobile layout.
Go to Navigation > Megamenu, select a menu and configure the megamenu. You can build a mega menu with multiple rows, each row can include multiple columns. You can assign menu items, modules or a module position to each column.
Enable Off-canvas (it is enabled by default), select module position, module style and other options.
Next, create a menu module, assign it to the position: off-canvas
For further details of Navigation Settings in T4 Framework, please go to Navigation Settings Documentation