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Implementing the Vertical Modern Menu Layout
The “Vertical Modern” menu layout is present within theme versions 4.1.3 + . In order to implement it, you will need to carry out the following:
Navigate to the Appearance > Theme Settings > Menu section
Set the menu width value to 200.
Within the “Menu Layout” section, specify the “Vertical Modern”
Once this is done, save your changes.
If you have any issue or question, feel free to open a ticket at https://woffice.io/support/