Do you have any left side navigation html sites?
Reply from Stav | April 15, 2014
Unfortunately adding a vertical menu is not possible at the moment.
However, you can create one yourself using buttons. In order to add a button click add --> buttons and menus --> button.
Add as many buttons as you need and link them to the pages by clicking on them --> link to --> page --> choose the page.
Also, if you'd like to vote for the vertical feature menu, please do in this thread.Should you have any further questions, please let us know! Thanks, Customer Solutions