Create different layouts for your Menu

From the Menu editor you can select different layouts:

Rows layout -> Horizontal Tabbed: on the left you have a filter for displaying the rows.

Rows layout -> Vertical Tabbed: on the left you have a filter for displaying the rows.

Rows layout -> Dropdown: each row has a button to display / hide it's content.

Sections layout -> Dropdown: each section has a button to display / hide it's content.