Enterprise portal Quick Launch menus open without it's own Quick Launch

1. Go to the WebModules, expand Home, EmployeeServices, select the new module that you added, in my case, EESAbsenceManagement.  Right click and select Deploy Element.
2. Edit each of your WebPageDefs, WebModule property to reflect the new module, i.e. it should now read Home\EmployeeServices\EESAbsenceManagement, note, if you try to use the drop down, you will NOT see the new module reflected, as per my original post.  Right click and select Deploy Element.
3. Edit each of your Web Menu Item's URL property to include the new module, i.e. EmployeeServices/EESAbsenceManagement/Enterprise%20Portal/EES_HcmEPAbsenceRequestListPage.aspx
4. Save, Generate incremental CIL, go to your Enterprise portal, under Home-> Role center, Administration, click on the Refresh AOD, Refresh data and Refresh dictionary links.

Your new module's quick launch menu should now stay when you navigate around!

Read full post:   https://community.dynamics.com/ax/f/33/t/193081