| Possible values: | true or false |
|---|---|
| Default value: | false |
| Requirements: | none |
| First available: | 2.1.0 |
| Supported browsers: | All |
| Description: | This option controls whether the user is able to open more than one submenu on each level. Set it to true and the menu will auto-close any other open submenu on the same level when one is opened by the user. The default value of false enables the user to have as many open submenus as he/she likes. |