Microsoft Navision web service missing Create method in WSDL

I am working with MS Navision web services, but my WSDL is missing Create methods. Can anyone help me with this? I can use other methods suck as Read or ReadMultiplne, but Create is missing. Another problem is, that if I add property to Page, I can see the property in WSDL but cannot use it in code even when I updated the web reference and built the solution. Thank you.