Delay in milliseconds between the moment the mouse pointer positioned over the menu item and sub-menu displayed. This delay prevents sub-menus flicker while the visitor moves the mouse over the menu block to the item he/she is interested in.

This setting is shared among all menu items on the same level/depth.

By default the delay is inherited from the parent level.

Millisecond is 1/1,000-th of a second. 200 ms is 1/5 sec.